Question

if sin A= ¾ then cos A?​

Answer 1

Step-by-step explanation:

sinA=3/4

cosA=√1-sin²A

cosA=√1-9/16

cosA=√7/16

cosA=√7/4

Answer 2

Answer:

cos A=√7/4

Step-by-step explanation:

sin A=perpendicular/hypotenuse

cos A=base/hypotenuse