xjwill102p3mpp3 xjwill102p3mpp3

04-02-2018
Mathematics

contestada

How do I do this?

Express the following as trigonometric ratios of either 30, 45 or 60 degrees and hence find their exact values

A) sin120
B) cos225
C) tan390

Respuesta :

Аноним Аноним

04-02-2018

A sin120 = 2 sin60 cos 60 = 2 * sqrt3/2 * 1/2 = sqrt3/2

B. cos 225 = - cos 45 = - 1 / sqrt2

C tan 390 = tan 30 = 1 / sqrt3

Answer Link

Otras preguntas

[tex]5^{-13} ×5^{2} ×2^{2}[/tex] How do I solve this problem step by step?

Graph for [tex]f(x) = \frac{(2x+3)(x-6)}{(x+2)(x-1)}[/tex]

Developing structures generally are most vulnerable to damage from environmental factors during the ___ stage of prenatal development.

Using similar triangles to find an unknown value. What is the value of x?

what military traditions did the south an north have

Her visitor, she saw as she opened the door, was seated in the armchair before the fire, dozing it would seem, with his bandaged head drooping on one side. The

What is the value of X?

HELP PLZ The table and the graph below each show a different relationship between the same two variables, x and y: How much more would the value of y be on the

Presidential power to make treaties and to appoint top executive officers, ambassadors, and federal judges is subject to Select one: a. congressional oversight.

Shelia mows 1/6 acre in 1/4 hour. How many acres does she mow in per hour?