Final answer to the problem
true
Step-by-step Solution
How should I solve this problem?
- Prove from LHS (left-hand side)
- Prove from RHS (right-hand side)
- Express everything into Sine and Cosine
- Exact Differential Equation
- Linear Differential Equation
- Separable Differential Equation
- Homogeneous Differential Equation
- Integrate by partial fractions
- Product of Binomials with Common Term
- FOIL Method
- Load more...
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1
Starting from the left-hand side (LHS) of the identity
$\frac{\cos\left(x\right)}{1+\cos\left(2x\right)}$
Learn how to solve trigonometric identities problems step by step online.
$\frac{\cos\left(x\right)}{1+\cos\left(2x\right)}$
Learn how to solve trigonometric identities problems step by step online. Prove the trigonometric identity cos(x)/(1+cos(2x))=1/(2cos(x)). Starting from the left-hand side (LHS) of the identity. Applying an identity of double-angle cosine: \cos\left(2\theta\right)=1-2\sin\left(\theta\right)^2. Factor the polynomial 2-2\sin\left(x\right)^2 by it's greatest common factor (GCF): 2. Applying the trigonometric identity: 1-\sin\left(\theta \right)^2 = \cos\left(\theta \right)^2.
Final answer to the problem
true
