Q. 44 B5.0( 1 Vote )

# If a cos 2x + b s

Answer :

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,

Product of the roots(mn)

Therefore,

If tan α and tan β are the roots of the equation

then,

Hence Proved

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