To find: The sine and cosine of an angle from the given equation.
Answer to Problem 27E
The sine and cosine angle is,
Explanation of Solution
Given:
Calculation:
Comparing with the standard equation for a quadratic curve,
Thus,
For the cross-product term to vanish, the coordinate axes must be rotated by an angle
Therefore,
Now,
Conclusion:
Hence, the sine and cosine angle is
Chapter A5 Solutions
Calculus: Graphical, Numerical, Algebraic
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