Math, asked by omkarpatil22, 8 months ago

6)
Show that 1-2sino cosO >_ 0 for all O € R

Answers

Answered by 8974269839

4

Answer:

L. H. S=1-2 sino. coso

=sin²o + cos²o - 2 sino. coso

=( sino - coso)

perfect square is always >_ o

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