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Exercise

$\left(\sin\:\left(70\right)-\sin\:\left(20\right)\right)\cdot\cos\left(25\right)$

Step-by-step Solution

1

Multiply the single term $\cos\left(25\right)$ by each term of the polynomial $\left(\sin\left(70\right)-\sin\left(20\right)\right)$

$\sin\left(70\right)\cos\left(25\right)-\sin\left(20\right)\cos\left(25\right)$

Final answer to the exercise

$\sin\left(70\right)\cos\left(25\right)-\sin\left(20\right)\cos\left(25\right)$

Try other ways to solve this exercise

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  • Product of Binomials with Common Term
  • FOIL Method
  • Find the integral
  • Find the derivative
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  • Integrate by partial fractions
  • Integrate by substitution
  • Integrate by parts
  • Integrate using tabular integration
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Similar Questions Solved

$\left(\sin\left(x\right)+\cos\left(x\right)\right)^2$

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$\tan\left(x\right)\csc\left(x\right)$

$\frac{2+\tan^2\left(x\right)}{\sec^2\left(x\right)}-1$

$csc^2x-1$

Main Topic: Simplify Trigonometric Expressions

Simplification of trigonometric expressions consists of rewriting an expression with trigonometric functions in a simpler form. To perform this task, we usually use the most common trigonometric identities, and some algebra.

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