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Simplify to a single trig function with no denominator.

cos theta*tan theta
Answer:

theta

Simplify to a single trig function with no denominator.\newlinecosθtanθ \cos \theta \cdot \tan \theta \newlineAnswer:

Full solution

Q. Simplify to a single trig function with no denominator.\newlinecosθtanθ \cos \theta \cdot \tan \theta \newlineAnswer:
  1. Understand Identities: Understand the trigonometric identities involved.\newlineWe know that tan(θ)=sin(θ)cos(θ)\tan(\theta) = \frac{\sin(\theta)}{\cos(\theta)}. We will use this identity to simplify the expression cos(θ)tan(θ)\cos(\theta)\cdot\tan(\theta).
  2. Substitute Identity: Substitute the identity for tan(θ)\tan(\theta) into the expression.cos(θ)tan(θ)=cos(θ)(sin(θ)cos(θ))\cos(\theta)\cdot\tan(\theta) = \cos(\theta) \cdot \left(\frac{\sin(\theta)}{\cos(\theta)}\right)
  3. Simplify Expression: Simplify the expression by canceling out the common terms. The cos(θ)\cos(\theta) in the numerator and the cos(θ)\cos(\theta) in the denominator cancel each other out, leaving us with: cos(θ)tan(θ)=sin(θ)\cos(\theta)\cdot\tan(\theta) = \sin(\theta)
  4. Verify Final Expression: Verify that the final expression is a single trigonometric function with no denominator.\newlineThe final expression is sin(θ)\sin(\theta), which is indeed a single trigonometric function with no denominator.

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