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I. Express the LHS in terms of sine and cosine and simplify
Learn how to solve sum rule of differentiation problems step by step online.
Learn how to solve sum rule of differentiation problems step by step online. Prove the trigonometric identity (1+cos(x))/sin(x)=sin(x)/(1-cos(x)). section:I. Express the LHS in terms of sine and cosine and simplify. Start from the LHS (left-hand side). Multiply and divide the fraction \frac{1+\cos\left(x\right)}{\sin\left(x\right)} by the conjugate of it's numerator 1+\cos\left(x\right). Multiplying fractions \frac{1+\cos\left(x\right)}{\sin\left(x\right)} \times \frac{1-\cos\left(x\right)}{1-\cos\left(x\right)}.