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If 1+^n C1costheta+^n C2cos2theta+........

If `1+^n C_1costheta+^n C_2cos2theta+........ +^n C_n` equals

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RESONANCE DPP-JEE MAINS-All Questions
  1. A non zero vector veca is parallel to the line of intersection of the ...

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  2. The value of the expression ((sin3theta)/(sintheta))^2-((cos3theta)/(c...

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  3. If 1+^n C1costheta+^n C2cos2theta+........ +^n Cn equals

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  4. A class has 175 students. The following data shows the number of stude...

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  5. The value of ((""^(50)C(0))/(1)+(""^(50)C(2))/(3)+(""^(50)C(4))/(5)+…....

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  6. If 1/|a| > 1/|b|, then |a| < b, where a and b are non-zero real number...

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  7. Draw the graph of the function: f(x)=||x-2|-3|

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  8. The coefficient of x^(n) in the expansion of (1-9 x + 20 x^(2))^(-1...

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  9. The number of roots of the equation, x-2/(x-1)=1-2/(x-1) is 0 (b) 1 ...

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  10. Concentric circles of radii 1,2,3,. . . . ,100 c m are drawn. The inte...

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  11. Value of (2sin9^(@)sin 21^(@)sin 39^(@)sin 51^(@)cos21^(@)sin 81^(@))/...

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  12. Let f(n)=sum(r=0)^nsum(k=r)^n(k r)dot Find the total number of divi...

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  13. Complete solution of inequality ||3x-9|+2|>2 is (-oo,oo) (b) {3} (...

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  14. Draw the graphs of y=x+x/(|x|)

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  15. If the sum of n terms of an A.P. is c n(n-1) where c!=0, then the sum ...

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  16. Suba Rao started work in 1995 at an annual salary of Rs. 5000 and rece...

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  17. lim(n->oo) sum(n=1)^ntan^(- 1)((2r+1)/(r^4+2r^3+r^2+1)) is equal to

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  18. Consider an A.P. a1, a2, an , and the G.P. b1,b2, ,bn , such that a...

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  19. If f(x)=sin{[x+5]+{x-{x-{x}}}" for "x in (0,pi/4) is invertible, where...

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  20. If (cosA)/(cosB)=p,(sinA)/(sinB)=q,then show that (p^(2)(1-q^(2)))/(p^...

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