Home
Class 8
MATHS
If a^(2) + (1)/( a^2) = 23, find : a+ (...

If `a^(2) + (1)/( a^2) = 23`, find : `a+ (1)/(a)`

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • IDENTITIES

    ICSE|Exercise EXERCISE 12(D)|49 Videos

  • IDENTITIES

    ICSE|Exercise EXERCISE 12(B)|36 Videos

  • FACTORISATION

    ICSE|Exercise EXERCISE 13(F)|49 Videos

  • INTEREST (SIMPLE AND COMPOUND)

    ICSE|Exercise EXERCISE 9(C)|39 Videos

Similar Questions

Explore conceptually related problems

If a^(2) + (1)/(a^(2))= 23 and a ne 0 , find the value of a^(3) + (1)/(a^(3))

(2) If A=[[2,3],[1,5]] then find A^(-1)

If A=[(1,-2,3),(-4,2,5)] and B=[(2,3),(4,5),(2,1)] , find AB and BA and show that AB!=BA

If A=[(1,-2,3),(4,5,-1),(5,0,2)] find 3A

If (2.3)^x=(0.23)^y=1000 , then find the value of 1/x-1/y .

If A'=[(-2,3),(1,3)] and B=[(-1,0),(1,2)], find [A+2B]'.

A = {1,2,3), B = {2,3}, then A- B is ………

(a^4-1)x^2-(a^2+1)(sin^(-1)sin^3 2)x+(cos^(-1)cos2)(a^2-1)=0 . Find the set of values of a so that above equation have roots of opposite in sign. [-2,3] b. [-1,1] c. [-2,1] d. varphi

(i) if A=[{:(1,-1),(2,3):}], then show that A^(2)-4A+5I=O. (ii) if f(x)=x^(2)+3x-5and A=[{:(2,-1),(4,3):}], then find f(A).

Three charges q_1 = 1 mu C, q_2 = -2 mu C, and q_3 = -1 mu C are placed at A (0,0,0), B(-1 , 2,3,) and C (2 , -1, 1) . Find the potential of the system of three charges at P( 1, - 2, -1) .