Question

If sin A=3/4,calculate Cos A and than A​

Answer 1

Step-by-step explanation:

hope the above answer will help you

Answer 2

Step-by-step explanation:

sin A = opposite side of angle/hypotenuse = 3/4

Therefore opposite side of angle A = 3k

While hypotenuse is 4k

$(hypotenuse)^{2} = (adjacent side)^{2} + (opposite side)^2\\4^{2} = (adjacent side)^{2} + 3^{2} \\16 - 9 = (adjacent side)^{2} \\\sqrt{7} = adjacent side$

cosA = adjacent side/hypotenuse

        =$\sqrt{7}/4$

tan A = opposite side/adjacent side

         3/$\sqrt{7}$

I HOPE IT HELPS YOU