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UNITED BOOK HOUSE-HARE SCHOOL-EXERCISE
- Find the minimum value of Cos^2theta+sec^2theta
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- If theta+phi=60^@,then show that sin(120^@-theta)=cos(30^@-phi)
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- Prove that tan62^@=2tan34^@+tan28^@
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- If |z+2|le2,find the maximum and minimum values |z|.
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- Show that the roots of (b+c)x^2-(a+b+c)x+a=0are rational .where a,b,c ...
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- The sum of n terms of an A.P is n^2.Find the common difference.
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- If three equal positive numbes a,b,c are in G.P,then show that a+c>2b
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- For what value(S)of K the point (1,-1),(2,1) and (K,5) lie on the same...
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- (at^2,2at)is a point on the line 2x-5y+12a=0,from this find the co-ori...
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- Find the angle between the two lines x-sqrt3y=3and sqrt3x-y+1=0
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- Evaluate: underset(x rarr 0)(lim)(3^(x)-1)/((4+x)^(1/2)-2)
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- What is the probability of obtaining 7 points with the rolling of two ...
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- Show that the equation of straight line xcosalpha+ysinalpha=p can be e...
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- If G is the G.M between two positive numbers a and b.show that 1/(G^2-...
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- Three positive numbers a,b,c are in A.P prove that 1/(sqrtb+sqrtc),1/(...
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- If a1,a2,a3,...,aaare in A.P then show that 1/(a1a2)+1/(a2a3)+1/(a3a4)...
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- If the roots of the equation p(q-r)x^2+q(r-p)x+r(p-q)=0 be equal ,show...
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- Solve :barz=iz^2(z being a complex number)
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- if alpha,beta,gamma are in A>P show that cot=(sinalpha-singamma)/(cosg...
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- Prove that (1)/(2sin10^(@))-2sin70^(@)=1.
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