magalyrodette9058 magalyrodette9058

02-03-2018
Mathematics

contestada

Write the expression in terms of sine only sin 9x cos 9x

Respuesta :

nikita83 nikita83

02-03-2018

[tex]\sin 2\alpha= 2\sin \alpha\cos\alpha\quad\Rightarrow\quad\sin 9x\cos 9x=\frac{1}{2}\sin 18x[/tex]

Answer Link

Otras preguntas

How was society organized in the Middle Ages?

You can divide any parallelogram into two matching triangles. How is this useful?i need to know this answer right now please

a meter stick casts a shadow 1.4 m long at the same time a flagpole casts a shadow 7.7 m long. The triangle formed by the meterstick and its shadow is similar t

When the following is balanced, C₄H₁₀ + O₂ → CO₂ + H₂O, what is the coefficient of CO₂? a. 2 b. 4 c. 8 d. 10 e. 13

You can divide any parallelogram into two matching triangles. How is this useful?i need to know this answer right now please

You can divide any parallelogram into two matching triangles. How is this useful?i need to know this answer right now please

I need help on my English homework I have no

From the equations 7a = 4 and 7a + 4b = 12, one can conclude that b is? Please explain the work behind the solution

how many year and months did it take to build blackpool tower england

Mary is making a pinata that has a ball-like shape. The pinata has a surface area of 40 feet. Use the formula for the surface area of a sphere: (S=4πr^2) to fin