Question

If sinA=3/4, Calculate cosA, tanA, secA, cosecA, cotA.​

Answer 1

Answer:

sin A = ¾

P/H = ¾

Let perpendicular be 3x and hypotenuse be 4x.

Using Pythagoras theorem;

(Base)²=(Hypotenuse)²-(Perpendicular)²

= (4x)² - (3x)²

= 16x² - 9x²

= 7x²

Base = √7x

Now,

cosec A = 4/3

cos A = √7/4

sec A = 4/√7

tan A = 3/√7

cot A = √7/3