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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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Answer» The solution of the equation lies in the interval (a) (b) (c) (d) |
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