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Given system of simultaneous equations 2...

Given system of simultaneous equations `2^x\ . 5^y=1\ a n d\ 5^(x+1). 2^y=2.` Then - (a) . `x=(log)_(10)5\ a n d\ y=(log)_(10)2` (b) . `x=(log)_(10)2\ a n d\ y=(log)_(10)5` (c) . `x=(log)_(10)(1/5)\ a n d\ y=(log)_(10)2` (d) . `x=(log)_(10)5\ a n d\ y=(log)_(10)(1/2)`

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  10. Which of the following when simplified reduces to an integer? a.(2...

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  11. If alpha, beta be the roots of the equation x^(2)-px+q=0, then find th...

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  15. If x1and \ x2 are the solution of the equation x^(3log10^3x-2/3log(10)...

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  16. If a^x=b , b^y=c ,c^z=a and x=(log)b a^2, y=(log)c b^3,z=(log)a c^k ,...

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  17. If (log)kx . (log)5k=(log)x5,k!=1,k >0, then x is equal to k (a) k ...

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  19. ((log)(10)(x-3))/((log)(10)(x^2-21))=1/2

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