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If cosA=2/5find 4+4tansq |
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Answer» CosA=2/51/secA=2/5SecA=5/2Squaring both sidesSec^2A=25/41+tan^2A=25/4Tan^2A=25/4-1Tan^2A=21/4TanA=√21/2Now put value of tanA in 4+4tanA 25 Once Solve it ...easy try ince |
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