1.

The solution of the equation cos2 x+sin x+1=0 lies in the interval(a) -π/4, π/4(b) π/4, 3π/4(c) 3π/4, 5π/4(d) 5π/4, 7π/4​

Answer» The solution of the equation cos2 x+sin x+1=0 lies in the interval

(a) -π/4, π/4

(b) π/4, 3π/4

(c) 3π/4, 5π/4

(d) 5π/4, 7π/4


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