1.

1, Tatal number of solutions of 20sx= Isin xl in[-2%, 5π] is equal to(a) 12(b) 14(c) 16(d) 15

Answer»

The graph of 2^cosx will cut |sin x| two times in interval of π , so total solutions will be 2×(5+2)=14hence option 2

how to draw graph of 2^cosx



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