/ trigonometry / By Sapling Academy Q) If Sin θ + cos θ = √3, then find the value of Sin θ . Cos θ Ans: Given that Sin θ + cos θ = √3Let’s square on both sides => (Sin θ + cos θ)2 = (√3) 2⇒ Sin2 θ + Cos2 θ +2 Sin θ Cos θ = 3⇒ 1 +2 Sin θ Cos θ = 3⇒ 2 Sin θ Cos θ = 2⇒Sin θ Cos θ = 1
If Sin α = 1/√2 and Cot β = √3, then find the value of Cosec α + Cosec β. Q) If sin α = 1/√2 and cot β = √3, then find the value of cosec α + cosec β. Ans: VIDEO SOLUTION STEP…
Prove that, (tanθ + secθ-1)/(tanθ – secθ + 1) = (1 + sinθ)/cosθ Q) Prove that, Ans: 2 methods to solve this question: 1st Method: LHS = = Multiplying numerator…
Prove that (cosecA – sinA) (secA-cosA) = 1/(cotA+tanA) Q) Prove that (cosec A – sin A) (sec A- cos A) = Ans: Let’s start with LHS: (cosec A – sin A) (sec A- cos A)…