Question

evaluate 2 tan square 45 degree + cos square 30 degree minus sin square 60 degree ​

Answer 1

Answer:

ans:2

Step-by-step explanation:

2 tan Square 45 degree =2×1 square

cos square 30 degree =(root 3/2) whole

Square

sin square 60 degree = (root 3/2) whole square

put the values

=2×1 square + (root 3/2) whole square- (root 3/2)whole square

2+3/4-3/4 (3/4-3/4=0)

=2 (ans)

Answer 2

Question:+cos²30°-sin²60°

Solution: 2×1²+(√3/2)²–(√3/2)²

=2+3/4–3/4

Answer=2