Q1 of 21 Page 113

Choose the correct alternative answer for following multiple choice questions.

2tan 450 + cos 450 – sin 450 =?

We know that,

tan 45° = 1


We also know that


cos 45° = sin 45°


So,


2 × 1 + cos 45° - cos 45°


= 2


So the correct option is C.

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