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Sin-cos= 0 then sin4 +cos4is |
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Answer» sinθ-cosθ = 0,sinθ= cosθ,sinθ/cosθ = 1,tanθ = 1,Bu tan45 = 1,So,tanθ=tan45,θ = 45°,sin45 = 1/√2 cos45 = 1/√2,sin⁴θ+cos⁴θ = (1/√2)⁴+(1/√2)⁴, = 1/4+1/4 = 2/4 = 1/2 = 0.5 sinθ-cosθ = 0sinθ= cosθsinθ/cosθ = 1tanθ = 1Bu tan45 = 1So,tanθ=tan45θ = 45°sin45 = 1/√2 cos45 = 1/√2sin⁴θ+cos⁴θ = (1/√2)⁴+(1/√2)⁴ = 1/4+1/4 = 2/4 = 1/2 = 0.5 |
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