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Sunday, 31 August 2025

Find the equation of a straight line, passing through two points (0,-3) and (0,5). [Determinant Method].



 

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Labels: Straight line +1

Wednesday, 27 August 2025

Find the equation of the line that has y-intercept 4 and parallel to the line 2x-3y=7. [ +1 ncert]




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Labels: Straight line +1

Monday, 18 August 2025

Find the value of n,if (n+1)_p_3=n_p_4. (ncert)





 



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Labels: Permutation and Combination class 11

Tuesday, 12 August 2025

Evaluating tan13π/12.



 

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Labels: Trignometric Functions 10th

Sunday, 3 August 2025

Prove that (1+sin2x-cos2x)/(1+sin2x+cos2x) = tanx. (ncert)


 

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Labels: Trignometric Functions 10th
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Integrating (1/(1-cosx)) -(1/(1+cosx)) w.r.t x.

 

  • Use the remainder theorem to factorise the following expression: 2x^3+x^2-13x+6. [icse 2010]
     
  • If (7m + 2n)/(7m - 2n) = 5/3 ; use the properties of proportion to find:(i) m:n. (ⅱ) (m ^ 2 + n ^ 2)/(m ^ 2 - n ^ 2). [icse 2017]
    (i) m:n  Given that , (7m + 2n)/(7m - 2n) = 5/3 Applying componendo and dividendo, we get, ((7m + 2n) + (7m - 2n))/((7m + 2n) - (7m - 2n)) =...
  • Find the values of p and q for which the following system of equations has infinite number of solutions: 2x + 3y = 7 , (p + q) * x + (2p - q) * y = 21 [cbse 10th 2001]
     

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  • Airthmatic progression
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