Given two vectors Ā = î - 29 – 3k and B = 4î – 29 +6. The angle

1.	Given two vectors Ā = î - 29 – 3k and B = 4î – 29 +6. The angle made by (A + B) with the X-axis is(A) 300(B) 45°(C) 60°(D) 90°
Answer» ANSWER: C Explanation: USE A.B =AbCos theta Cos =A.B/AB

Given two vectors Ā = î - 29 – 3k and B = 4î – 29 +6. The angle made by (A + B) with the X-axis is(A) 300(B) 45°(C) 60°(D) 90°

Answer»

ANSWER:

Explanation:

USE A.B =AbCos theta

Cos =A.B/AB

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Given two vectors Ā = î - 29 – 3k and B = 4î – 29 +6. The angle made by (A + B) with the X-axis is(A) 300(B) 45°(C) 60°(D) 90°​

USE A.B =AbCos theta

Cos =A.B/AB

Discussion

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Given two vectors Ā = î - 29 – 3k and B = 4î – 29 +6. The angle made by (A + B) with the X-axis is(A) 300(B) 45°(C) 60°(D) 90°