Question

11. If A+B=90, Cot B=3/4 then find the value of Sin A​

Answer 1

Answer:

SinA= 4/5

Step-by-step explanation:

Given, A+B= 90°____(1), cot B =3/4.

Applying cot on both sides in eqn (1),

CotA + Cot B = Cot90

CotA = 0 - 3/4

CotA = 3/4

Using pythagoras thm,

Hyp. = 5

So, SinA = 4/5

Pl mark brainliest.

Answer 2

Answer:

3/5

Step-by-step explanation:

cot B = 3/4

tan A = 3/4                   ........as we know cot X = cot (90-Y) = tan Y

sin A = 3/√(3²+4²)               where (X+Y) = 90

        = 3/5