1.The number of roots of the equation cos7θ−sin4θ=1\cos^7 \theta - \sin^4 \theta = 1cos7θ−sin4θ=1 that lie in the interval [0,2π][0, 2\pi][0,2π] isa.222b.333c.444d.888Login to continueOnly logged in users canattempt or see the solution.
