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Maths-

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Easy

Question

The greatest value of $sin to the power of 4 end exponent invisible function application theta plus cos to the power of 4 end exponent invisible function application theta$ is

$1 / 2$
1
2
3

The correct answer is: 1

$sin to the power of 4 end exponent invisible function application theta plus cos to the power of 4 end exponent invisible function application theta equals open parentheses sin to the power of 2 end exponent invisible function application theta plus cos to the power of 2 end exponent invisible function application theta close parentheses to the power of 2 end exponent minus 2 sin to the power of 2 end exponent invisible function application theta cos to the power of 2 end exponent invisible function application theta equals 1 minus 2 sin to the power of 2 end exponent invisible function application theta cos to the power of 2 end exponent invisible function application theta less or equal than 1$

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