Question

Please answer this question​

Answer 1

Answer:

wait for few minutes for your answer

Answer 2

Answer:

Step-by-step explanation:

Explanation:

Let

θ 1 = sin − 1 ( 4 /5 )

θ 2 = sin − 1 ( 5 13 )  

Then,

sin θ 1 =  4 /5 ,  ⇒ , cos θ 1 = 3 /5

sin θ 2= 5 /13 ,  ⇒ ,  cos θ 2 = 12 /13

sin ( θ 1 + θ 2 ) = sin θ 1  cos θ 2  +  cos θ 1  sin θ 2

= 4 /5  ⋅  12 /13  +  5/13  ⋅  3 /5  

=48 + 15 /65

= 63 /65

Therefore,

θ 1 +θ 2 = sin − 1 ( 63/65 )

proved

PLS MARK BRAINLIEST

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