Question

Find the value of 4(sin4 30° + cos4 60°) – 3(cos4 45° + sin4 90°)

please answer fast urgent​

Answer 1

Answer:

sin⁴ 30° = (1/2)⁴ = 1/16

cos⁴ 60° = (1/2)⁴ = 1/16

cos⁴ 45° = (1/√2)⁴ = 1/4

sin⁴ 90° = 1⁴ = 1

4(1/16 + 1/16) - 3(1/4 + 1)

4(1/8) - 3(5/4)

1/2 - 15/4

2/4 - 15/4

-13/4.

So your answer is -13/4.

Step-by-step explanation:

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