Math, asked by avanijain4436, 10 months ago

If sina + sin2 a=1 prove cos2 a+cos4 a= 1

Answers

Answered by B509

2

Answer:

Step-by-step explanation:ok it's done

Attachments:

Answered by rahman786khalilu

1

Answer:

1

Step-by-step explanation:

sin A + sin ^2 A = 1

sin A = 1 - sin^2A

sin A = cos ^2 A

from above

Cos ^2 A + Cos ^4A = Sin A + Sin^2A= 1

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