Evaluate: int0^1 1/(1+x^2)\ dx...

Evaluate: `int_0^1 1/(1+x^2)\ dx`

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XII BOARD PREVIOUS YEAR PAPER ENGLISH-BOARD PAPER SOLUTIONS-All Questions

If | vec a|=sqrt(3)\ | vec b|=2\ \ and vec a.vec b=sqrt(3,)\ find t...
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A pair of dice is thrown 4 times. If getting a doublet is considere...
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Evaluate: int0^1 1/(1+x^2)\ dx
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Write the principal value of cos^(-1)(1/2)-2sin^(-1)(-1/2)
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Evaluate int1^4(x^2-\ x)\ dx as a limit of sums.
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If Delta=|[5, 3 ,8],[ 2, 0 ,1],[ 1 ,2 ,3]| , write the minor of the el...
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Evaluate : int(1-x)sqrt(x)\ dxdot
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Evaluate: int0^(pi/4)(sinx+cosx)/(9+16sin2x)dx
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Find lambda where projection of vec (a) = lambda hat (i) + hat (j) ...
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If a line has direction ratios 2, –1, –2, then what are its directi...
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Write the vector equation of the line given by (x-5)/3=(y+4)/7=(z-6...
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Prove that: tan^(-1)[(sqrt(1+x)-sqrt(1-x))/(sqrt(1+x)+sqrt(1-x))]=pi/4...
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Using properties of determinants, solve the following for x: |[x-2, ...
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If x=tan(1/alogy)\ , show that (1+x^2)(d^2\ y)/(dx^2)+(2x-a)(dy)/(dx)=...
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Evaluate: int0^(pi/2)(x+sinx)/(1+cosx)dx
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Solve the following differential equation: x\ dy-y\ dx=sqrt(x^2+y^2...
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Solve the following differential equation: <math> <mrow> <mro...
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A speaks truth in 60% of the cases, while B in 90% of the cases. In...
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If vec a ,\ vec b ,\ are two vectors such that | vec a+ vec b|=| ve...
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