Question

tan^2 45 +sin^2 60 -sec^2 0 +cos^2 60 =

Answer 1

Answer:

1

Step-by-step explanation:

tan^2 45 + sin^2 60 - sec^2 0 + cos^2 60

(1)^2 + (√3/2)^2 - (1)^2 + (1/2)^2

1 + 3/4 - 1 + 1/4

3/4 + 1/4 = 4/4 = 1