Question

If tanA=5/12,find the value of(sinA-cosA).

Answer 1

Answer:

cosA=0.8 find the value ofsinAAM 09:24

AM 09:28

Answer 2

Answer:

tan A = perpendicular/base

draw a right angled triangle and find the hypotenuse using pythagoras theorem

(h)²=(5)²+(12)²

h²= 25+144

h = square root of 169 =13

As per question substitute the value of

sin A=perpendicular/hypotenuse

sin A = 5/13

cos A = base/hypotenuse

cos A = 12/13

add it to get answer.

5/13+12/13 =17/13