Math, asked by nabeelahmedna, 4 months ago

write cos(2x) in terms of sin (x) and cos (x)

Answers

Answered by subhankerkumar264

1

Step-by-step explanation:

cos2x

we can write cos2x as cos(x+x)

cos(x+x)=cosx*cosx-sinx*sinx

cos²x-sin²x

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