If `sin^(4)theta-cos^(4)=k^(4), then sin^(2)theta-cos^(2)theta` is __________.

If `sin^(4)theta-cos^(4)=k^(4), then sin^(2)theta-cos^(2)theta` is __________.
A. `K^(4)`
B. `K^(3)`
C. `K^(2)`
D. `K`

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

Salim Ahmed Kawsar

Correct Answer - A
`a^(4)-b^(4)=(a^(2)-b^(2))(a^(2)+b^(2))`.

5 views Answered 2023-02-05 15:29

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