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If 2/(1 !3!)+2/(3!7!)+1/(3!5!)=2^m/(n!),...

If `2/(1 !3!)+2/(3!7!)+1/(3!5!)=2^m/(n!),` then orthocentre of the triangle having sides `x-y+1=0,x+y+3=0and 2x+5y-2=0` is

A

`(2m-2n,m-n)`

B

`(2m-2n,n-m)`

C

`(2m-n,m+n)`

D

`(2m-n,m-n)`

Text Solution

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The correct Answer is:
A
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ARIHANT MATHS-THE STRAIGHT LINES-Exercise (Single Option Correct Type Questions)
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  2. If 2/(1 !3!)+2/(3!7!)+1/(3!5!)=2^m/(n!), then orthocentre of the trian...

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  3. If f(x+y) = f(x).f(y) for all x and y. f(1)=2, then area enclosed by 3...

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  7. Line L has intercepts a and b on the coordinate axes. When the axes ar...

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  12. f is a function defined by f(x) = |x - 1| + 3. Find f(-9).

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  13. The line x+y=p meets the x- and y-axes at Aa n dB , respectively. A tr...

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  14. If P(1,0) ,Q(-1,0) and R(2,0) are three given points ,then the locus o...

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  15. If A((sin alpha)/3 - 1,(cos alpha)/2 - 1) and B(1,1) alpha in [ -pi,pi...

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  16. The line x+y=1 meets X - axis at A and Y - axis at B,P is the mid poin...

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  17. Solve the following system of inequalities graphically : 4x + 6y le 24...

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