kuageorge877 kuageorge877

22-05-2021
Mathematics

contestada

3sin²x-2cos²x=5sin²x-2

Respuesta :

22-05-2021

Answer:

L.H.S.3sin²x-2cos²x
3sin²x-2(1-sin²x)
3sin²x-2+2sin²x
5sin²x-2
R.H.S
proved

Step-by-step explanation:

Note:

we have

sin²x+cos²x=1

replacing it

cos²x=1-sin²x

[as we need sin on right hand side.]

Answer Link

Otras preguntas

A car is traveling 78.9 kilometers per hour. What is its speed in miles per minute? One ilometer = 0.62miles

How do I find VW? For this question

Is this answer correct

What type of method used for studying the brain in action would be most appropriate for studying the lateralization of the brain? Why?

Iron reacts with steam according to the reaction 3Fe +4 H2O → Fe3O4 + 4H2O. How many grams of iron will react with 5 moles of steam to convert to iron oxide wit

Daniel makes $4.25 per hour plus $2.15 forevery delivery he makes. If he makes$17.15 in one hour, how many deliveriesdid he make? Write and solve an equationfor

a pencil company produces two types of pencils: mechanical pencils and wooden pencils. The company selects 40 random packages of each type to check their weight

Are there it Peter words part time 3 hours every day in Sandy works part time 2 hours everyday if both of them get for $4.50 an hour right and in equal ality

What is 11/15 as a repeating decimal

Simplify tan9x-tan5x / 1+tan9xtan5x (SHOW WORK)