Question

If sin x=cos x ,find the value of 3 tan^ 2 x+ 2 sin ^ 2 x -1 ​

Answer 1

Answer:

2.5

Step-by-step explanation:

sinx=cosx then x=45°

3tan^2(45)+2sin^2 (45) -1

3(1)^2 + 2(1÷2)^2 -1

3+0.5 -1

2.5