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Circular Measurement of Angle

Find the valu...

Question

Find the value of $tan 45^{o} + 2 cos 60^{o} - sec 60^{o}$ .

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Solution

$tan 45^{o} + 2 cos 60^{o} - sec 60^{o}$
$= 1 + 2 (\frac{1}{2}) - 2$
$= 1 + 1 - 2 = 0$

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