Math, asked by aaradhana1610, 7 months ago

(iv) If sin A + sin2A = 1, then the value of the expression cos2A + cos4A is?

Answers

Answered by nakulathul

3

ANSWER

sinA+sin

2

=1

sinA=1−sin

2

A

sinA=cos

2

A

Now

cos

2

A+cos

2

A.cos

2

A

=sinA+sin

2

A

=1 ...(given)

Answered by AnujDhangar

1

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