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UNITED BOOK HOUSE-TECHNO INDIA GROUP ACADEMIA,SOUTH KOLKATA.-EXERCISE
- Determine x so that 2 is the slope of the line passing through P(2, 5)...
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- Equation of the circle concentric to the circle x^2+y^2+4x-2y=20and th...
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- Find the middle term of the expansion (1-1/x)^8.
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- Find the power set of A={a,b,c}.
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- A relation R is defind on the set A={2,3,4,5} as follows :(x,y)in Rimp...
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- In /\ABC,a=2,b=3 and sin A=2/3.Find |B
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- Prove that ,(sin2x)/(1+cos2x)=tanx
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- Express in the form A+iB,(A,B are real),i/(1+i)+(1+i)/i
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- If (2n)C3:nC3=11:1find n.
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- The n term of an A.P is 7n-5,find the sum of first 20 terms of the se...
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- Find the 4the term from the end in the expansion of (x^3/2-2/x^2)^9
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- Find the equation of the perpendicular bisect or of the line joining t...
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- Find the ratio in which the line segment joining A(2,4,5) and B(3,5,4)...
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- Evaluate :lim(hrarr0)(e^h h)/h-1
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- If f(x)=x|x|,prove that f'(x)=2|x|.
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- In a lottery there are 10 prizes and 25 blanks.Find the probability of...
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- Find mean and variance for the following data 5,9,8,12,6,10,6,8.
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- For any three sets A, B, C. show thatAxx(B-C)=(AxxB)-(AxxC)
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- In any /\ABC,prove that sin(B-C)/(sin(B+C))=(b^2-c^2)/(a^2)
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- Prove that,cosx/(1-sinx)=tan(pi/4+x/2)
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