The value of expression 1-4 sin 10-sin 70-2 sin 10- is

The correct option is B 1 1 2(cos60^o cos80^o)/2sin10^o=1 2(1 2 cos80^o)/2sin 10^o =2cos80^o/2sin10^o=1 ...

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Question

The value of expression $\frac{1 - 4 s i n 10^{o} s i n 70^{o}}{2 s i n 10^{o}}$ is

1/2

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\frac{1 - 4 sin 10^{\circ} sin 70^{\circ}}{2 sin 10^{\circ}}

\frac{1 - 4 sin 10^{\circ} sin 70^{\circ}}{2 sin 10^{\circ}}

\frac{1 - 4 sin 10^{\circ} sin 70^{\circ}}{2 sin 10^{\circ}}

\frac{1 - 4 \sin 10 ° \sin 70 °}{2 \sin 10 °}

Write the value of the expression
$\frac{1 - 4 s i n 10^{\circ} s i n 70^{\circ}}{2 s i n 10^{\circ}}$

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