Trigonometry Answers

Prove that
tan2A = (sec2A+1)√sec²A-1

cos(5theta - pie/6) = -square root 2/ 2

sin((theta divided by 3) + (pie divided by 4)) = one half

use power reducing formulas to rewrite the expression in terms of the first power of the cosin.

tan²x

Hello Dear Sir,which one contain a large number of points.
1)line
2)Circle

the question says: "The rate of change of the function f(x)=secx+cosx is given by the expression secxtanx-sinx. Show that this expression can also be written as sinxtan(x)^2

Dear Sir i have one problem .plese help me to solve.
"Measure of a linesegment joining the mid points of two sides of a triangle is 4cm.Find measure of the third side .also explain the result which are used to solve the this problem

in math if the maximum # of people at a resort is 15000 and it drops to the minimum if 500 within 6 months what is the cosine equation that describes this function?

Hello Dear Expert what isthe greatest value of "sin theta +cos theta"

Hello Expert Sir pease help me and send the answer of the following answer.
where sine and cosine curve meet