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" 4.If "sin17^(@)=(x)/(y)" .let us show ...

" 4.If "sin17^(@)=(x)/(y)" .let us show that "sec(7^(@)-sin73^(@)=(x^(2))/(y sqrt(y^(2)-x^(2)))

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If sin17^(@)=(x)/(y) then prove that sec17^(@)-sin73^(@)=(x^(2))/(ysqrt(y^(2)-x^(2)))

If cos73^(@)=(x)/(y) Show that cosec "73^(@)-cos17^(@)=(x^(2))/(y sqrt(y^(2)-x^(2)))

Answer any two questions : If sin 17^@ = x/y , show that sec 17^@ - sin 73^@ = (x^2)/(ysqrty^2 - x^2) .

If sin 17^@ = x/y ,then the value of sec 17^@ - sin 73^@ is

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