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If cos ^4 theta + sin ^2 theta is equals to M then |
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Answer» cos^4 θ+sin^2 θ=cos^4 θ−cos^2 θ+1=m ∴(cos^2 θ− 1/2)^2 + 3/4 =m ∴m≥ 3/4Maximum VALUE of cosθ=1 ∴m≤ 3/4 +(1− 1/2)^2 = 1Hope this HELPS. PLS HIT BRAINIESTTT!!! |
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