Welcome to my article **How to solve cos(30+60)**. This question is taken from the simplification lesson.

The solution of this question has been explained in a very simple way by a well-known teacher by doing addition, subtraction, and fractions.

For complete information on how to solve this question **How to solve cos(30+60)** read and understand it carefully till the end.

Let us know how to solve this question **How to solve cos(30+60)**

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## How to solve cos(30+60)

**This question is based on trigonometry,**

**in this way, to solve this question,**

**we will also take the help of trigonometry formula **

**Let us first write this question in this way**,

**FORMULA**

** \displaystyle \cos (A+B)= \displaystyle \cos A\cos B-\sin A\sin B**

**We know that **,

**putting the value**,

**or,**

**\displaystyle \cos ({{30}^{\circ }}+{{60}^{\circ }})=\cos ({{90}^{\circ }})=0 [Answer]**

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