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## If vector A has components Ax and Ay and makes an angle θ with the +x axis, thena. Ax +Ay (where A is magnitude of A)b. θ= Ay/Axc. Cosθ=

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## Answers ( )

Answer:c. Cos θ = /

Explanation:A vector is any quantity that has both magnitude and direction. The given vector A has components and , and makes angle θ with +x axis.

Thus;

Resultant of the vector, A =

Therefore, the components, angle and resultant of vector A can be represented in magnitude and direction by the three sides of a right angled triangle.

Applying the appropriate trigonometric function to the triangle for vector A, we have;

Cos θ = ÷

⇒ Cos θ = /

The correct option is C.