Question

2tan45°+(os45°-sin45°=?
(a)0 (b)1 (c)2 (d)3

Answer 1

Answer:

use table

Step-by-step explanation:

2(1)+1/rt2-1/rt2=2

option c is the correct answer

Answer 2

Answer:

we know that

tan45°=1

Cos45°=1/√2

Sin45°=1/√2

so put this value in equation

2tan45°+Cos45°-Sin45°

2(1)+1/√2-1/√2

2+1/√2-1/√2

Take LCM √2

2√2+1-1/√2

Rationalization

2√2/√2×√2/√2

4/2

2 is the right answer of this question....