Question

The value of (sin2 (45)°+2tan2(45°)-sec2(45°)=​

Answer 1

Step-by-step explanation:

We Know That,

Sin45° = 1/√2

tan45° = 1

sec45° = √2

Now,

Sin^2(45°) + 2tan^2(45°) - sec^2(45°) =>

=> (1/√2)^2 + 2×(1)^2 - (√2)^2

=> (1/2) + 2 - 2

=> 1/2

Hence The answer is 1/2....