limit θ=2 θ√θ-√8/ θ-2
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PLS MARK BRAINLIEST
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Step-by-step explanation:
Given 2cosθ=22+2+2
Squaring on both sides
2cos2θ=1+22+2
⟹(2cos2θ−1)=22+2
⟹cos2θ=22+2
Squaring on both sides
⟹cos22θ=42+2
⟹2cos22θ=1+21
⟹cos4θ=2
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