Produto→Soma sen(A)·sen(B)
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
produto→soma
About this calculator
The product-to-sum identity calculator is a useful tool for solving advanced trigonometric problems.
It uses the product-to-sum identity formula, which is sen(A)·sen(B) = ½·[cos(A−B) − cos(A+B)], to calculate the sum of the sines of two angles.
This calculator is especially useful when you need to find the sum of the sines of two angles in physics, engineering, or mathematics problems.
Remember that the formula only applies when you're dealing with the sines of two angles and not other types of trigonometric functions.
Frequently asked questions
What is the product-to-sum identity formula?
The product-to-sum identity formula is a mathematical relationship that relates the product of the sines of two angles to an expression in terms of cosines of differences and sums of angles.
When should I use this calculator?
Use this calculator when you need to find the sum of the sines of two angles in physics, engineering, or mathematics problems.
Can I use this calculator with other trigonometric functions?
No, the product-to-sum identity formula only applies to sines of two angles and not to other trigonometric functions.
How do the UtilizAí calculators work?
The UtilizAí calculators are online tools that are easy to use and provide quick and accurate results for a variety of practical calculations.