Question

Choose the correct alternative answer for following multiple choice question.

2 tan 45^° + cos 45^° - sin 45^° = ?

Options

• 0

• 1

• 2

• 3

Answer 1

2 tan 45^° + cos 45^° - sin 45^° 

 = `2 xx 1 + 1/sqrt2 - 1/2`

= 2