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What is: sin^4(0) + 2sin^2)(0)cos^2)(0)-1+cos(^4)(0)

Guest Mar 31, 2017
 #1
avatar+7153 
+2

You don't need a calculator for this! :)

sin4(0) + 2sin2(0)cos2(0) - 1 + cos4(0)

 

sin(0) is 0, and 0 raised to any power is 0, so....

= 0 + 2(0)cos2(0) - 1 + cos4(0)

 

= 0 + 0 - 1 + cos4(0)

 

= -1 + cos4(0)

 

cos(0) = 1, and 14 = 1

= -1 + 1

 

= 0

 

You can use the calculator on the home page to check yourself:

Put it like this (you can copy and paste it):

sin(0)^4 + 2sin(0)^2*cos(0)^2- 1 + cos(0)^4

hectictar  Apr 1, 2017

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