Math, asked by anamumang268, 8 hours ago

cos³+sin³/cos+sin
+
cos³-sin³/cos-sin
=
2

Answers

Answered by veerajagarwal

0

Answer:

Consider

From equation (1), we get

xy3+yx3=xy

xy(x2+y2)=xy

x2+y2=1

Hence, proved.

Step-by-step explanation:

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