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Maths-

General

Easy

Question

Assertion (A): If the system of equations $3 x minus 2 y plus z equals 0 comma lambda x minus 14 y plus 15 z equals 0 comma x plus 2 y minus 3 z equals 0$ have non zero solution then $lambda equals 5$
Reason (R): If the system of equations $A X equals 0$ has a non zero solution then $bold italic A$ is singular

Both A and $R$ are true and $R$ is the correct explanation of A
Both $A$ and $R$ are true and $R$ is not correct explanation of $A$
A is true but $R$ is false
A is false but $R$ is true

The correct answer is: Both A and $R$ are true and $R$ is the correct explanation of A

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For such questions, we should know area of different shapes.

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