12-01-2018
Mathematics

contestada

cosxsinx-2cosx=0
I dont know how to solve this

Respuesta :

tynollette tynollette

12-01-2018

factor out cosx: cosx(sinx-2)=0
cosx=0 or sinx-2=0
cosx=0 or sinx=2
the largest value of sinx is 1, sinx will never be 2, so cosx=0, x=π/2 or 3π/2 are the two answers.

Answer Link

Otras preguntas

In Regulating the Commons, Japanese village detectives had a strict set of punishments with money sanctions for those who broke the Elders' rules concerning whe

Which expression shows (3-4i)+(-7-8i) in simplest form? A.-1-15i B.-4-12i C.-4-28i D.10-12in

Roberto just deposited $11,500 into his savings account at Security Savings Bank. The bank will pay .55 percent interest, compounded annually, on this account.

Chillmax Company plans to sell 3,500 pairs of shoes at $60 each in the coming year. Unit variable cost is $21 (includes direct materials, direct labor, variable

Sodium carbonate (Na2CO3) is used to neutralize the sulfuric acid spill. How many kilograms of sodium carbonate must be added to neutralize 5.04×103 kg of sulfu

In the 1800s, imperial nations such as Great Britain established colonies in order to (Á)increase their wealth, power, and access to natural resources and raw m

Derek consumes a protein-rich drink before and after his workouts. He told his workout partner that he became 200% stronger within a couple of months after he a

A freight train from city A to city B and a passenger train from city B to city A left the cities at the same time, at 10:00 AM, heading towards each other. The

what’s is the slope and y intercept of 3x-4y=-15

Abraham says to tell Henrietta to make her own Obed O bird cage Oliver and onions