Question

If f(θ) = |sin θ| + |cos θ|, θ ∈ R, then f(θ) is in the interval …..

(a) [0, 2] 

(b) [1, √2] 

(c) [1, 2] 

(d) [0, 1]

Answer 1

Answer is (b) [1, √2]