Math, asked by Varunrai2452, 1 year ago

Show that:

sin^4θ-cos^4θ=1-2cos^2θ

Explode: Are you sure about your question? ?

Varunrai2452: yes

Answers

Answered by Explode

3

Hope it will help you .

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Varunrai2452: how did you get the fifth step

Varunrai2452: explain pls

Explode: sin^2theta = (1 - cos^2theta)

Explode: do you understand? ?

Varunrai2452: ok

Varunrai2452: thanks bro

Explode: welcome bro

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