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If e^{(sin^2x+sin^4x+sin^6x+…oo) ln2} sa...

If `e^{(sin^2x+sin^4x+sin^6x+…oo) ln2}` satisfies the equation `x^2-9x+8=0` find the value of `(cosx)/(cosx+sinx), 0ltxlt pi/2`

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