Rangers' Battle

Determine the type of roots of the following quadratic equations.

x²-3x=-7

• No Real Roots

• Two Real and Equal Roots

• Two Real and Different Roots

Determine the range of the following function.

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Find the value of theta.

Find the unit vector in the direction of the following vector.

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• (9,-3)

• (4,2)

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• (9,3)

Find the area of triangle PQR.