Question

2 tan²45° + cos²30°- sin²60° ​

Answer 1

Answer:

please follow me

Step-by-step explanation:

=2×1+√3/2-√3/2

=2

Answer 2

∵ we know,

tan 45° = 1

cos 30° = (√3 / 2)

and sin 60° = (√3/2)

So,

By substituting the values~

2 tan²45° + cos²30°- sin²60°

= 2 ( 1 ) + (√3/2)² - (√3/2)²

= 2

Final value of 2 tan²45° + cos²30°- sin²60° is 2.