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Difference between maximum and minimum values of θ satisfying the equation sin4θ+cos7θ=1  in the interval (π,π)  is:

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By Expert Faculty of Sri Chaitanya
a
π
b
π/2
c
π/4
d
None

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detailed solution

Correct option is A

If cosx≠1,sin2x≠1 . Then, cos7x
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Number of values of the parameter α[0,2π]  for which  the quadratic function, (sinα)x2+2cosαx+12(cosα+sinα) is the square of a linear function is

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