Question

4 (sin*4 30° + cos*2 60) – 3(cos*2 45° – sin*2 90°) - sin*2 60°​

Answer 1

Answer:

3

Explanation:

sin 30 is cos 60 which is 1/2

cos 45 is 1/sqrt 2

sin 90 is 1

sin 60 is sqrt 3/3

substituting the values we get 3

Answer 2

Answer:

2

this is how U do it:

check the values from the maths tb pg no 185

4(1/16 + 1/4)-3(1/2-1)-3/4 (this is simplified form)

after doin,

4×5/16 +3/2-3/4

5/4+3/2-3/4

LCM is 4... so,

5/4+6/4-3/4

11/4-3/4

8/4=2..

this is the answer... Do it then U will get it and if any mistakes ryt lemme know