The value of (cosθ+sinθ+1)(cosθ+sinθ−1)−2sinθcosθ is
The value of ∣∣ ∣∣cos(θ+∝)−sin(θ+∝)cos2 ∝sin θcos θsin ∝−cos θsin θλ cos∝∣∣ ∣∣ is