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If the A.M. of two positive numbers aa n...

If the A.M. of two positive numbers `aa n db(a > b)` is twice their geometric mean. Prove that : `a : b=(2+sqrt(3)):(2-sqrt(3))dot`

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CENGAGE ENGLISH-SEQUENCES AND SERIES-All Questions
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  7. Three numbers are in G.P. whose sum is 70. If the extremes be each mul...

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  8. If x=a+a/r+a/(r^2)+oo,y=b-b/r+b/(r^2)+oo,a n d z=c+c/(r^2)+c/(r^4)+o...

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  14. If p(x)=(1+x^2+x^4++x^(2n-2))//(1+x+x^2++x^(n-1)) is a polomial in x ,...

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  16. If f is a function satisfying f(x+y)=f(x)xxf(y) for all x ,y in N suc...

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