Q. 44 A

# If a cos 2x + b s

Given: a cos 2x + b sin 2x = c We know,  Therefore,

a cos 2x + b sin 2x = c       We know,

If m and n are roots of the equation ax2 + bx + c = 0

then,

Sum of the roots(m+n) Therefore,

If tan α and tan β are the roots of the equation then,   Hence Proved

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