CBSE BOARD XII, asked by bjjyyeyeyr, 10 days ago

cosa/tana.sina=16 then prove that seca=root17/4

Answers

Answered by shettysachi5

0

Answer:

1-sin2A/cos^2=4

1-sin2A=cos^216

sinA2=cos2*17

sinA=cosA 17

cosA17=cos^2A 2*4

cosA17=cos^8

cosA=8/17

Explanation:

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