Question

if sin O =7upon 5, find the values of cos O​

Answer 1

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Answer 2

Answer:

given-sin 0=7/5

to find-cos 0

solution- (sin o)² +(cos0)²=1

(7/5)² + (cos o)² =1

(49/25)+(cos0) ² =1

(cos o)² ,= 1 -49/25

(coso)²= 25-49/25

(coso)² = 24/25

coso=√24/5 (both side square)