tanx+cotx=4, then tan^4x+cot^4x=?
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Step-by-step explanation:
We are given ....(1)
We have to find the value of
Consider, the given equation (1),
Squaring both side, we get
Using identity
Since,
.............(2)
Again squaring (2) both sides to obtain the desired powers.
Again Using identity
Since,
Thus,
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