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The angle between the curves y=sin x and...

The angle between the curves `y=sin x and y = cos x, 0 lt x lt (pi) /(2)`, is

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The correct Answer is:
8
`m_1 = y_1^(') = 1/(sqrt2) , m_2 = y_(2)^(') = (-1)/(sqrt2)`
`tan theta = (2/(sqrt2))/(1-1/2) = 2sqrt(2)`.
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