prove it........
plzz answer
Attachments:
Answers
Answered by
1
Step-by-step explanation:
sin4A - cos4A= (sin2A - cos2A)(sin2A + cos2A)
= (sin2A - cos2A)(1)
= sin2A - (1 - sin2A)
= 2sin2A - 1
Answered by
0
online ho to snap aana plz..
Similar questions