Question

evaluate: sin^2 30+cos^2 45-sin 90+cos0+sec30​

Answer 1

Step-by-step explanation:

sin^230° + cos^245 -sin90° +cos° +sec30°

(1/2)^2 + (1/√2)^2 - 1 +1 +2/√3

1/4 +1/2 +2/√3

.√3 + 2√3 +2. .........................

4√3