Maths-

General

Easy

Question

# is perpendicular to , then

- 5
- 4
- 3
- 2

Hint:

### We are given three vectors We are given that vector and are perpendicular. We have to find the value of t. We will first find the value of .

## The correct answer is: 5

### The given vectors are , and

We have to find out

We are given that the vector and are perpendicular. So, their dot product will be zero.

Taking the dot product

So, the value of t is 5.

For this question, we should know the rules of dot product.

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