Math, asked by aryansharma7467, 11 months ago

if alpha + beta=90 the cos²alpha +cos²beta =????​

Answers

Answered by kavyasaxena106
1

Answer:

1 is the answer.. ... ... ... ..

Attachments:
Answered by Anonymous
1

Answer:1

Step-by-step explanation:

alpha=90-beta

Cos alpha=cos(90-beta)

Cos alpha=sin beta

Cos^2 alpha=sin^2 beta

Cos^2alpha+cos^2beta=sin^2beta+cos^2beta=1

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