Question

In a right-angled triangle, it is given that
A is an acute angle and tan A = 5/12
Find the values of
(1) cos a
win a
cos a+sin a/cos a- sin a​

Answer 1

Answer:

TanΦ = P/B = 5/12

then H = √(5^2+12^2) = √(25+144)=√169 = 13

then Cos a = B/H = 12/13 ans.

win a????!!!?! no such value. .

CosA +SinA/cosa -sina = 12/13+(5/13)/(12/13)-5/13 = 12/13 + 5/13 -5/13 = 12/13 ans.