The value of cos square23-sin square 67 is positive
Answers
Answered by
0
Hi friend!!
Given, Cos²23-Sin²67
=Cos²23-Sin²(90-23)
→We know that Sin(90-A)=CosA
=Cos²23-Cos²23
=0
I hope this will help you;)
Given, Cos²23-Sin²67
=Cos²23-Sin²(90-23)
→We know that Sin(90-A)=CosA
=Cos²23-Cos²23
=0
I hope this will help you;)
Similar questions