# Solution - Trigonometric Identities

Account
Register

Share

Books Shortlist
ConceptTrigonometric Identities

#### Question

Prove that: (1 – sinθ + cosθ)^2 = 2(1 + cosθ)(1 – sinθ)

#### Solution

You need to to view the solution
Is there an error in this question or solution?

#### Similar questions VIEW ALL

Prove the following identities, where the angles involved are acute angles for which the expressions are defined

(tantheta)/(1-cottheta) + (cottheta)/(1-tantheta) = 1+secthetacosectheta

view solution

Prove the following identities, where the angles involved are acute angles for which the expressions are defined.

sqrt((1+sinA)/(1-sinA)) = secA + tanA

view solution

Prove the following identities, where the angles involved are acute angles for which the expressions are defined.

(1+ secA)/sec A = (sin^2A)/(1-cosA)

[Hint : Simplify LHS and RHS separately]

view solution

Evaluate sin25° cos65° + cos25° sin65°

view solution

If acosθ – bsinθ = c, prove that asinθ + bcosθ = \pm \sqrt{a^{2}+b^{2}-c^{2}

view solution

#### Reference Material

Solution for concept: Trigonometric Identities. For the course 8th-10th CBSE
S