Solution

prove

Solution

Solution steps
Show that the two sides are not equal
For plug in
Refine to a decimal form
Refine to a decimal form
The two sides are not equal

Popular Examples

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Frequently Asked Questions (FAQ)

  • Is 2cos(2x)-1=1-2sin(2x) ?

    The answer to whether 2cos(2x)-1=1-2sin(2x) is False