kosala1478 kosala1478

28-07-2019
Mathematics

contestada

HELP....someone plz solve this proof for me......
I'll give you 5stars and brainliest

HELPsomeone plz solve this proof for meIll give you 5stars and brainliest class=

Respuesta :

tally771 tally771

28-07-2019

Answer:

1+cos^2(2A)=(1−cos2(2A))+2cos^2(2A)

=sin^2(2A)+2(cos^2A−sin^2A)^2

=(2sinAcosA)^2+2(cos^4A−2cos^2Asin^2A+sin^4A)

=2(cos^4A+sin^4A)

Step-by-step explanation:

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