The greatest value of `sin^4theta+cos^4theta` is

The greatest value of `sin^4theta+cos^4theta` is
A. `1//2`
B. 1
C. 2
D. 3

Monjur Alahi

6 views

2025-01-04 04:42

1 Answers

Salim Ahmed Kawsar

Correct Answer - B
`sin^4theta+cos^4=(sin^2theta+cos^2theta)^2-2sin^2thetacos^2theta`
`=1-2sin^2thetacos^2thetale1`

6 views Answered 2023-02-05 15:29

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