If sin theta 3/5 and theta terminates in the first quadrant find the exact value of cos 2 theta

Step-by-step explanation:

We have

We know

         sin²θ + cos²θ = 1

We need to find cos2θ

We have

           cos2θ = cos²θ - sin²θ

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step-by-step explanation: vsfdvsfvd

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w