Tyson13 Tyson13

01-03-2019
Mathematics

contestada

If cos x=8/17
and 270° < x < 360°
what is cos(2x)⁡?

Respuesta :

LammettHash LammettHash

07-03-2019

It follows immediately from the double angle identity:

[tex]\cos2x=2\cos^2x-1=-\dfrac{161}{289}[/tex]

Answer Link

Otras preguntas

Why do people gamble and keep gambling despite heavy losses?

The coordinate notation for a translation 5 units right and 6 units down is?

What’s the correct ordered pair

What does axis 1 in psychological disorders classify

write another way to group the factors 2×(3×1)

Write the standard form of the line that passes through the given points. Include your work in your final answer. Type your answer in the box provided or use th

The absence of children in largely all-male chinese immigrant communities meant that

When a family faces a situation that is too hard to solve by itself, it is a sign of strength to _____.

The mixture of food and gastric juice that passes from your stomach to your small intestine is called

What line, spoken by gertrude, indicates that she was not involved in king hamlet's murder? i'll warrant you,/ fear me not: withdraw, i hear him comin?