Math, asked by mintymilkshakessuck, 6 hours ago

the question is in the image. please help me solve it. thank you.

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Answers

Answered by jakshit886

1

Answer:

b is the correct answer for this question

Answered by rakshith0806

1

Answer:

a is correct answer

Step-by-step explanation:

A=i+j

B=2i-3j

cos(theta)=(i+j).(2i-3j)/root(2)×root(13)

cos(theta)=2-3/root(26)

cos(theta)= -1/root(26)

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