In how many different ways 4 boys and 3 ...

In how many different ways 4 boys and 3 girls can be sitted in one row so that two girls are not together?

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UNITED BOOK HOUSE-MODEL QUESTION PAPERS-SET 13-EXERCISE

Solve :sin 3theta = cos 3theta (0 < theta < pi)
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Find the amplitude of i/(1-i).
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In how many different ways 4 boys and 3 girls can be sitted in one row...
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Find the middle term of the expansion of (a^2/3+3/a^2)^8
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The sum of the 1st m terms of an AP is n and the sum of the 1st n term...
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The co-ordinate of the vertices of a triangle are (2, -2), (4, 2) and ...
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Find the co-ordinate of that point which divides the line segment join...
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show that lim(nrarr0)(root(3)(n+1)-1)/n=1/3
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If y = x/(x+a),show that x dy/dx = y (1- y)
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A box contains 50 articles of which 4 are defective. One article is ta...
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Find the mean deviation of 36, 72, 46,60, 42, 45, 53. 46, 51, 49.
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For any three sets A, B, C, Prove that A cap(BcupC)=(AcapB)cup (A cap ...
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If tan (theta/2)=tan^3 (phi/2)and tanphi=2tanalpha,then prove that the...
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In a triangle ABC if a cos^2(C/2)+c cos^2(A/2)=((3b)/2)show that sides...
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Prove that by mathematical induction : 3^(2n+ 2) - 8n - 9 is divisible...
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If x=a+b,y=aw+bw^2,z=aw^2+bw,show that xyz=a^3+b^3
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if the ratio of the sum of n terms of two A Ps is (3n + 5) : (5n - 9)...
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The coefficient of three consecutive terms in the expansion of (1+x)^n...
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Show that the straight line (a + 2b) x + (a -3b)y + b -a = 0 always p...
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Find the equations of straight line which are perpendicular to the str...
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