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Questions27
• ### Trigonometric Infinite Series For Cosine , Sine and Tangent....?

How to prove whether the series is wrong or correct?

sin x = x- x^3/3! + x^5/5! - x^7/7! +.....

cosx= 1- x^2/2!+ x^4/4! - x^6/6! + ....

and if the series is right. how to prove sin 30 = 0.5 using the series.

its going infinity and the value is too big to calculate.so pls help me out. thanks in advance. !!!!!!!!!!!!!!!!!!!!!!!!!!!

2 AnswersMathematics8 years ago
• ### Trigonometry A-level Question , Please help guys !?

sin 4A - sin 2A = cos 3A

solve all the possible values for A in degree form.

thanks in advance !

1 AnswerMathematics8 years ago
• ### Bodybuilding. I need advice guide and helps. ! thanks in advance ! seriously in need of help from u guy s!!!!!?

I am a 18 -year-old guy. after school . interested in bodybuilding cuz im thin. I don wann ppl to look down on me. i started last week. i bought GNC weight gainer 2200. now im struggling at the gym.

cuz i don know where to start with ... the gym closed on weekends. it opens on monday till friday.

my plan is like tis :

MON - chest

TUES- bicep

WED-arm

THURS-tricep

FRI-shoulder

SAT & SUN - cardio

u may think its too much. and overtraining. im new. and im not doing the right way. tats y i don really feel the soreness and pain in my focused muscles. I am doing moderately. perhaps i think the plan is ok ?? tats y i need advice from u guys who are much more experienced and pro than me.

seriously i really do appreciate those who willing to show me the right plan and proper way.

like if for chest muscle training - what should i do. the sets and reps.

3 AnswersDiet & Fitness9 years ago
• ### cubic formula....its kind of confusing since im not a pro. thanks anyway!?

http://www.sosmath.com/algebra/factor/fac11/fac11....

when i reach the part when solving depressed cubic equation,

why 3st = A (1)

s3-t3= B. (2)

can u tell me why?

and furthermore, why it turns out that y= s - t

4 AnswersFormula One9 years ago

2 logbase 4 y - logbase5 y = 1.2

find y.

3 AnswersMathematics9 years ago
• ### Im in love...need some advice from you guys, any help will be appreciated !!!?

i knew a girl in facebook and she is living in the same city, she is 16 and im 17 she is from other school and I have fallen in love with her, this is my first time being so serious and sincere. She is the most special girl i have ever known in my life. So her birthday is on october and im wondering wat shud i giv her as present. So i asked her, and she told me she didnt want any present. I wanna know whether she is telling me truth , maybe she wants but she is shy to receive gift from a boy she knows in facebook? we chat many recently but she looks like uninterested in getting a boyfren. So any advice? shud i giv her a present and what shud i do? shud i giv up so easily? im going to buy her earrings so isit suitable to buy earrings?

• ### HELP i have genital problem..!!?

I HAVE MANY LITTLE UNBREAKABLE DEPOSITS ON MY UNCIRCUMCISED PENIS SKIN.

WHAT ARE THOSE? IT LOOKS DISGUSTING AND I HAVE NO IDEA HOW TO CLEAR THEM.

• ### Please Help Me, I beg You, Give Me A Clue, I Want To Live My Life With Meanings !?

Hi, Im from malaysia, im extremely interested in astronomy, cosmology, ufology ....time. yea, is there any way to be one of the expert researchers and theory physicists like stephen hawking? thanks in advance for any valuable advices. I mean what courses should i take..go overseas but where is the place?

2 AnswersLyrics9 years ago
• ### biology question..biology question..biology question..biology question..?

Is having darker blood better or lighter blood?

some say having darker blood is better because it contains more haemoglobin and some say lighter blood is more oxygenated than darker blood.

1 AnswerBiology9 years ago
• ### guys, pls help me ! im dead..pls math?

Best Bakery shop received an order from your school to bake a 5 kg of round cake as shown

in Diagram 1 for the Teachers’ Day celebration.

Diagram 1

1) If a kilogram of cake has a volume of 3800cm3, and the height of the cake is to be 7.0

cm, calculate the diameter of the baking tray to be used to fit the 5 kg cake ordered by

your school. [Use π = 3.142]

2) The cake will be baked in an oven with inner dimensions of 80.0 cm in length, 60.0 cm

in width and 45.0 cm in height.

a) If the volume of cake remains the same, explore by using different values of

heights, h cm, and the corresponding values of diameters of the baking tray to be

1 AnswerHomework Help9 years ago
• ### wanna ask you guys something on right way to cosmology.?

I'm extremely interested in cosmology and i wanna know whether chemistry is important or is it related to it....?

i hate chemistry and i love physics and biology, so will it affects me if i'm weak in chemistry.

besides, what are the important fields in order to go to cosmology.

astronomy...physics....quantum mechanics....mathematics....and?

3 AnswersPhysics10 years ago
• ### laser ! scars! face! skin problem! pls help!?

if i have a lot of pimples and eventually scars formed.

laser...is it painful?

• ### is there anything wrong in my sentences?

Haplessly, the Krypton's isolationism had banned any of his inventions that were regarded as hazardous.

2. cataclysms ( anything wrong with my spelling?

my teacher marked them wrong.

4 AnswersLanguages10 years ago
• ### Please help me out here on English story!!!!?

Give me your views on my story. thanks.

please kindly visit my blog to view it.

http://charmingcoolblue.blogspot.com/

1 AnswerHomework Help10 years ago
• ### Questions about STEP ! Please kindly answer, I'm really interested to know more about it.?

STEP normally known as Sixth Term Examination Paper.

the questions are :-

1. what are the popular fields questions that will commonly appear in STEP?

2. What grade do I need to achieve if I were to further my study in Cambridge or Oxford?

given x/a = y/b = z/c, prove that [a^2(x^2)+b^2(y^2)+c^2(z^2)] / a^3(x)+b^3(y)+c^3(z) =square root of (xyz)/(abc)

make sure you copy it over a piece of paper to get rid of confusion.

your hardwork and patience will be greatly appreciated. thanks in advance.

• ### About Binomial Theorem (Mathematics)?

1. given that the expression x^2-5x+7 leaves the same remainder whether divided by x-b or x-c, where b is not = c, show that b+c=5.

2.solve this equation, 2x^3+x^2-61x+30=0

• ### Challeging Maths Questions that You Will definitely find it BAffled!!!!!!!!!!!?

1) given that the expression x^2-5x+7 leaves the same remainder whether divided by x-b or x-c, where b is not = c, show that b+c=5.

2)solve the equation 2x^3+x^2-61x+30=0

3)solve the equation 2x^3-5x^2+x+2=0

Sketch the graph of y=2x^3-5x^2+x+2 ( the coordinates of any turning points are not required)

-just briefly explain how to do it, thanks in advance.

THANK YOU MATHS PRODIGIES!!!!!!!!!!!!!!

• ### All geniuses please help me solving my maths problems!!!! they're all challenging!?

1) given that the expression x^2-5x+7 leaves the same remainder whether divided by x-b or x-c, where b is not = c, show that b+c=5.

2)solve the equation 2x^3+x^2-61x+30=0

3)solve the equation 2x^3-5x^2+x+2=0

Sketch the graph of y=2x^3-5x^2+x+2 ( the coordinates of any turning points are not required)

-just briefly explain how to do it, thanks in advance.

THANK YOU MATHS PRODIGIES!!!!!!!!!!!!!!