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

Lauren made a large compost bin in her back yard. What is the volume of the compostbin?

Theme can be defined as: a fight, battle, struggle or strife. the highest or most intense part of the story. a unifying or dominant idea in a work of fiction. a

The ____________________ was the conflict between the states in the North and the South in the mid-1800s. A. abolitionist B. Civil War C. secede D. Underground

A:24cm B:48cm C:80cm D:96cm

whats the distance between the following points? -9,8 -3,2

In 1992, the _______ system was implemented to replace physicians' Medicare fee system

Sailors on a ship at sea spot the light from a lighthouse at an angle of elevation of 25°. The light of the lighthouse is 30 meters above sea level. How far fro

14+x≤26 solution to the inequality

what’s the body of water to the north of africa

XYZ Inc. produces two types of paper towels?regular and super-soaker. Regular uses 2 units of recycled paper per unit of production, and super-soaker uses 3 uni