Question

Find Sin2a if, tan a 5/12​

Answer 1

Answer:

=120/169

Step-by-step explanation:

sin2a=2sinacosa

=2×5/13×12/13

==120/169

Answer 2

Step-by-step explanation:

tan A=5/12

tan A= sin A/cos A

SinA/cos A=5/12

O=5, A=12

Acc to Pythagoras Theorem

H=root((5) ^2+ (12) ^2)=root ((13)^2)=13

H=13

Sin2A = 2 sinA= (O/H)2=(5/13) 2 = 10/13

Hope this answer is helpful