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Question

Evaluate each of the following

tan 45°cosec 30°+sec 60°cot 45°-5 sin 90°2 cos 0°

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Solution

We have,

…… (1)

Now,

,,

So by substituting above values in equation (1)

We get,

Now by taking terms with denominator 2 together and solving

We get,

Now gets reduced to -2

Therefore,

Therefore,


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