Math, asked by veenhete01, 9 months ago

(cos(x) + 4 sin(x)) (cos(x) - 2sin(x)) = 0

Answers

Answered by yudhisthirjingar
1

Answer:

(cos(x) + 4 sin(x)) (cos(x) - 2sin(x)) = 0

Step-by-step explanation:

=cos^2(x)-2sinxcosx+4sinxcosx-8sin^2(x)

=cos^2(x)+2sinxcosx-8sin^2(x)

=sin2x+cos2x-7sin^2(x)

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