Answer:
67cm3
Step-by-step explanation:
You have the following expression:
To verify the identity, you have that the left side of the equation becomes:
(1 + cosx)(1 - cosx) = (1 - cos^2 x)
because of the product of an expression by its conjugate result in a difference of squares. Or simplfy by expanding the factors and simplying.
Next, you have:
1 - cos^2 x = sin^2 x
because the Pythagorean identity.
Then, the identity is verified.
383838383838383838383838383838
Answer:
3
Step-by-step explanation:
Hope this helps
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To convert from kilometers per hour to kilometers per minute, we simply divide by as there are minutes in an hour.
To find how far the car will travel in a certain time, just multiply the speed by the time.