cos2A-sin2A=2 (cos2A-1)
Answers
Answered by
1
Answer:
YES.
Step-by-step explanation:
LHS ⇒ cos²A - sin²A
⇒ cos²A + cos²A -1------------------------->(sin²A + cos²A = 1)
⇒ 2cos²A - 1
jhanviDeshmukh:
thanks bro
welcome bro
well,I'm sis not bro
....??
Answered by
1
please go through the attachment.
hope you like my answer and if you like it then please mark me BRAIN LIST
hope you like my answer and if you like it then please mark me BRAIN LIST
Attachments:
TYSM ....
WRONG
IT'S 2(COS^2A-1)=2COS^2A-2..........
no no he have written the question wring it was 2cos²-1
he fault ly used brakets
OK...........................SRY
no problem
bro
guy's u have given me wrong answer.vivekpnaie11479 is correct brackets are for a reason
Plz someone give me the right one!!!
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