prove that [tex]cos 9x-cos 5x/sin17x-sin3x=-sin2x/cos10x[/tex]

Question

Mathematics

Answered

prove that [tex]cos 9x-cos 5x/sin17x-sin3x=-sin2x/cos10x[/tex]

Sagot :

ID Other Questions

How Would You Use The Word "appeasement" In A Sentence, Regarding To U.S. Foreign Policy From The Years Of 2000 & Up?

What Do You Do In This Problem After Traveling For 6.0 Second Runner Reaches A Speed Of 10m/s. What Is The Runners Acceleration

Wich Is The Relationship Between Communication And Culture? 3 Arguments. 2-3 Paragraphs

Stacey Filled Her One Half Cup Measuring Cup Seven Times To Have Enough Flour For A Cake Recipe. How Much Flour Does The Cake Recipe Call

The Larger Of Two Numbers Is 1 More Than Twice The Smaller. The Sum Of The Numbers Is 20 Less Than Three Times The Larger. Find The Numbers.I NEED Help Please.

The Energy An Object Has Due To Its Motion Is Called ?

How Would You Use The Word "appeasement" In A Sentence, Regarding To U.S. Foreign Policy From The Years Of 2000 & Up?

Write 5.6% As A Decimal

Anthony Had $280. Johnnie Had $420. What Is The Ratio Of Anthony's Money To Johnnie's Money?

Pepe11id Pepe11id · Answer 1

Pepe11id Pepe11id

cos9x - cos5x = -2sin2x.sin7x
sin17x - sin3x = 2sin7x.cos10x
so f(x) = [tex] \frac{-2sin2x.sin7x}{2sin7x.cos10x} [/tex] =[tex] \frac{-sin2x}{cos10x} [/tex]

Answer Link