MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Sarrus Rule

Find value of...

Question

Find value of Determinant using SarrUs Rule $∣ ∣ ∣ ∣ \begin{matrix} 1 & 2 & 6 3 & 1 & 5 7 & 2 & 1 \end{matrix} ∣ ∣ ∣ ∣$

A

40

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

49

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

C

54

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

60

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B 49
We know by Sarrus Rule:

draw

Sum of products along solid diagonal - sum of products along dashed diagonal
= 1 + 2(5)(7) + 6(3)(2) - 6(1)(7) - 1(5)(2) - 2(3)(1)
= 1 + 70 + 36 - 42 - 10 - 6 = 49

Suggest Corrections

thumbs-up

9

Similar questions

Q. Find value of Determinant using SarrUs Rule

∣ ∣ ∣ ∣ \begin{matrix} 1 & 2 & 6 3 & 1 & 5 7 & 2 & 1 \end{matrix} ∣ ∣ ∣ ∣

Q. The value of determinant using sarrus method

∣ ∣ ∣ ∣ \begin{matrix} - 1 & 2 & - 3 3 & - 2 & 1 2 & 1 & - 3 \end{matrix} ∣ ∣ ∣ ∣

Q. The value of determinant using sarrus method

∣ ∣ ∣ ∣ \begin{matrix} 1 & 2 & 3 3 & 2 & 1 2 & 1 & 0 \end{matrix} ∣ ∣ ∣ ∣

Q. Sarrus Rule says that determinant of the three colums on the left is the sum of products along dashed diagonals minus the sum of products along solid diagonals.

∣ ∣ ∣ ∣ \begin{matrix} 3 & 2 & 5 9 & - 1 & 4 2 & 3 & - 5 \end{matrix} ∣ ∣ ∣ ∣

by sarrus rule.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Sarrus Rule

MATHEMATICS

Watch in App

explore_more_icon

Explore more

Standard XII Mathematics

Join BYJU'S Learning Program

CrossIcon