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Sahay Sir > Question Answers > NCERT Exemplar Class 11 > Maths > Chapter 3 - Trigonometric Functions > Example 25 If sin x = 3/5 , cos y = − 12/13 , where x and y both lie in second quadrant, find the value of sin (x + y).

Example 25 If sin x = 3/5 , cos y = − 12/13 , where x and y both lie in second quadrant, find the value of sin (x + y).

cos y = − 12/13 Example 25 If sin x = 3/5 find the value of sin (x + y). where x and y both lie in second quadrant