Math, asked by naruto1652, 10 months ago

If cos a + cos square is equal to 1 prove that sin square a + sin 4 is equal to 1

Answers

Answered by sandy1816
1

Step-by-step explanation:

cos+cos²a=1

cosa=1-cos²a

cosa=sin²a.........(1)

cos²a=sin⁴a.......(2)

sin²a+sin⁴a

=cosa+cos⁴a

=1

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