hokpich069 hokpich069

22-06-2020
Mathematics

contestada

Prove that : sin^4(2x)=3/8-1/2cos4x+1/8cos8x
Someone plzz help!!!

Respuesta :

abbeyelliott abbeyelliott

22-06-2020

sin^2 (2x) = (1 - cos(4x))/2
---> sin^4 (2x) = (1/4)(1 - cos4x)^2 = (1/4)(1 - 2cos4x + cos^2 (4x)) and replace cos^2(4x) by (1/2)(1+cos(8x)) --->answer

Answer Link

Otras preguntas

Two inflation rate indicators?

briefly explain how to separate a mixture of water, kerosene, sawdust and nahso4?

Does #7 look right? Im struggling on this

Calculate 20% of 3 3/4 years in months.

On a typical 120 volt circuit in your home, you may have a 15 ampere fuse or circuit breaker. What is the maximum power (watts) that this circuit can handle? Ho

Polar molecules have partial positive and partial negative charges. An electrical attraction between the partial positive charge of one polar molecule and the p

you have been asked to prevent an informal speech at a farewell function for your friend

Please help me!!! I’ll give brainly! Given that -3 is a root of the function h(x)=x^3+2x^2-5x-6, use synthetic division and factoring to indent idt the other ro

PENSANDO NA PREPOSIÇÃO DE LUGAR IN(DENTRO DE , EM) - ELA INDICA NA FRASE... * 1 ponto A)BAIRRO,CIDADE,ESTADO,PAÍS. B)ENDEREÇO,NOME DE RUA C)DATA,ANO,MES

what does booster mean ?????