csaditya22Shiva csaditya22Shiva
  • 26-05-2017
  • Mathematics
contestada

Why sin c is written as 2sinc/2cosc/2

Respuesta :

WojtekR
WojtekR WojtekR
  • 26-05-2017
From double-angle formula we know that:

[tex]\sin(2\theta)=2\sin\theta\cos\theta[/tex]

so (for θ = c/2):

[tex]\sin c=\sin(2\cdot\frac{c}{2})=2\sin(\frac{c}{2})\cos(\frac{c}{2})[/tex]
Answer Link

Otras preguntas

30 ounces = how many pounds and ounces
A. F(x) < 0 on the interval x < 0. B. F (x) > 0 on the interval x <0. C. F (x) < 0 on the interval 0 < x < 1. D. F (x) > 0 on the inte
Salt water is best described as _______. A. a mixture B. a compound C. a pure substance D. an element Please help D:
Write the superlative form of the following word. Friendly
.7 Define the rule of law. Do you think the rule of law prevails in India?
What is Functional conditioning?
Please help on this one ?
Read this passage from "The Fish I Didn't Catch." We are apt to speak of the sorrows of childhood as trifles in comparison with those of grown-up people; but w
A pair of parallel lines is cut by a transversal. One of the angles formed measures 58°. Which statements about the other seven angles formed are true? There ar
A cargo ship traveled 150 nautical miles in 6 hours at a constant speed. How far did the cargo ship travel in one hour