Write, but do not evaluate, the definite integral that gives the length of one petal…

MATHEMATICS · Subjective · AP · Calculus BC · Applications of Integration · Applications of Integration

Problem

Write, but do not evaluate, the definite integral that gives the length of one petal of the curve

r=\cos 2\theta

for

-\frac{\pi}{4}\le\theta\le\frac{\pi}{4}