Question

if sin theta =5/13.then find cos theta​

Answer 1

sin theeta = 5 / 13

=> P / H = 5 / 13

P = 5 ; H = 13

by Pythagoras Theorem

B² = H² - P²

= (13)² - (5)²

= 169 - 25

= 144

B = √144

B = 12

:- cos theeta = B / H

= 12 / 13

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Answer 2

This is the answer ...... if it helps then it's good