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Combining like terms $\sin\left(x\right)$ and $\sin\left(x\right)$
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$\frac{2\sin\left(x\right)}{1+\cos\left(x\right)}$
Learn how to solve simplify trigonometric expressions problems step by step online. Simplify the trigonometric expression (sin(x)+sin(x))/(1+cos(x)). Combining like terms \sin\left(x\right) and \sin\left(x\right). Multiply and divide the fraction \frac{2\sin\left(x\right)}{1+\cos\left(x\right)} by the conjugate of it's denominator 1+\cos\left(x\right). Multiplying fractions \frac{2\sin\left(x\right)}{1+\cos\left(x\right)} \times \frac{1-\cos\left(x\right)}{1-\cos\left(x\right)}. The sum of two terms multiplied by their difference is equal to the square of the first term minus the square of the second term. In other words: (a+b)(a-b)=a^2-b^2..