Friday
May 24, 2013

# Posts by HELP!

Total # Posts: 106

Trigo help!
Ok, i've tried this question, and it brings me to no answers. Please help! Prove the following: secY(1+tanY)=6cosecY my workings: LeftHandSide: secY + tanY/cosY = 1/cosY + sinY/cos^2Y =(cosY+sinY)/cos^2Y = ??? How should i attempt this question?? Am i even on the right tra...

Trigo!
sorry, i found my mistake already.

Trigo!
Ok, i've tried this sum a million times and i cant get an answer. Somebody please check my workings and tell me what i did wrong! Thanks! Given 4≤y≤6, find the value of y for which 2cos((2y)/3) + √3 = 0 Here's my workings: 2.666≤(2y/3)≤4 2...

Trigo!
Ok, i did this maths trigo question, that says sinx-cos=2/3. I squared it on both sides to get sin2x=5/9 and did the sum. In the end i got two solutions, 16.9 and 73.1. However, when i substituted the answers back into the equation, only one of the 2 answers was correct! The o...

math
8(x+1)^2

english
Need to write a memo. Scenrio:You've been put in charge of planning a one-day departmental training seminar with Dr. Melaine Dobler as the speaker. You must make travel arrangements for the speaker, reserve company room large enough for the number of people attending,and r...

facts in africa
I never thought of it that way! Thanks

facts in africa
Why is it that more boys than girls go to school in Africa? It says that for every 100 boys there are 83 girls enrolled in school. Why so few?

College
Well Ms Sue, I would have, but when I did, you all ignored it for over 20 mins and went on to the easier questions. So is that a sign you do not understand the question? As for Bob, I appreciate you answering the question on the other post (even though it took over 25 mins). B...

College
The Power of a Power Rule Simplify. All variables represent nonzero real numbers. -5y^4(y^5)^2 / 15y^7(y^2)^3 I got: -5y^40 / 15y^42 Is this correct?

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