Question

Asked Oct 13, 2019

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Step 1

Refer to the question, we have to find the value of sin(A+B) , cos(A+B) and tan(A+B) when provided with sin A=12/13 with A in Q2 and Sin B=-15/17 with B in Q3.

Step 2

Now use the formula for the identity sin (A+B), cos (A+B) and tan(A+B).

Step 3

Now as we know that in first quadrant all the trigonometric ratios are positive , in second only sine and cosec is positive rest are negative, in thir...

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