Home
Class 12
MATHS
There are two values of a which makes de...

There are two values of a which makes determinant `Delta=|{:(1,-2,5),(2,a,-1),(0,4,2a):}|=86`, then sum of these number is `"........."`

A

4

B

5

C

-4

D

9

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • DETERMINANTS

    KUMAR PRAKASHAN|Exercise Solutions of NCERT Exemplar Problems (Fillers)|10 Videos

  • DETERMINANTS

    KUMAR PRAKASHAN|Exercise Solutions of NCERT Exemplar Problems (True/False)|11 Videos

  • DETERMINANTS

    KUMAR PRAKASHAN|Exercise Solutions of NCERT Exemplar Problems (Long Answer Type Questions)|6 Videos

  • CONTINUITY AND DIFFERENTIABILITY

    KUMAR PRAKASHAN|Exercise Practice Paper - 5 (Section-D)|4 Videos

  • INTEGRALS

    KUMAR PRAKASHAN|Exercise PRACTICE PAPER-7 (SECTION-D)|2 Videos

Similar Questions

Explore conceptually related problems

Evaluate the deternminant Delta=|{:(1,2,4),(-1,3,0),(4,1,0):}|

Find the minor of elements 6 in the determinant Delta=|{:(1,2,3),(4,5,6),(7,8,9):}|

Find the value of the determinant |{:(1,2,4),(3,4,9),(2,-1,6):}|

The value of the determinant |{:(1,1,1,1),(1,2,3,4),(1,3,6,10),(1,4,10,20):}| is

Verify Property 2 for Delta=|{:(2,-3,5),(6,0,4),(1,5,-7):}|

Write Minors and Cofactors of the elments of following determinants : |{:(1,0,4),(3,5,-1),(0,1,2):}|

Using Cofactors of elements of second row, evaluate Delta=|{:(5,3,8),(2,0,1),(1,2,3):}|

If lambda and mu are the cofactors of 3 and -2 respectively in the determinant |{:(1,0,-2),(3,-1,2),(4,5,6):}| the value of lambda+mu is

Write minors and cofactors of the elements of following determinant |{:(2,-1,3),(4,2,5),(0,4,-1):}|