JBD PUBLICATION-MODEL PAPER (15)-EXERCISE
- Prove that A^c-B^c=B-A.
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- If f(x)=log(x/(x-1)), show that f(x+1)+f(x)=log ((x+1)/(x-1))
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- Prove that:cos15^@-sin15^@=1/sqrt2
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- Prove that : cos 24^@+ cos 55^@ + cos 125^@ + cos204^@ + cos 300^@= 1/...
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- How many words, with or without meaning, each of 2 vowels and 3 conson...
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- Find the value of n such that : "^nP5=42 ^nP3, n>4.
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- Sum of first p,q and r terms of an A.P. are a,b,c respectively. Prove...
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- If the angle between two lines is pi/3 and slope of one of the line is...
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- If a parabolic reflector is 20 cm in diameter and 50 cm deep. Find the...
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- Evaluate: underset(xrarr1)lim ((x+x^2+x^3+……….x^n)-n)/(x-1)
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- If y=asinx+bcosx, prove thaty^2+((dy)/(dx))^2=a^2+b^2
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- A,B and C are three mutually exclusive and exhaustive events associat...
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- Find theta such that (3+2i sin theta)/(1-2i sin theta) is purely real.
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- If a + ib = ((x+i)^2)/(2x^2+1), prove that a^2+b^2 =((x^2+1)^2)/((2x^2...
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- Solve the following system of inequalities graphically: 4x + 3y le 60,...
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- IQ of a person is given by the formula IQ= (MA)/(CA)xx100 , where MA i...
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- Evaluate: underset(xrarr0)lim (sqrt(1+2x)-sqrt(1-2x))/(x)
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- Find the derivative of cos x w.r.t. x
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- Find the mean marks from the following data :
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- Find the mean deviation from the mean for the following data. 38, 70, ...
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