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Complete:
x−x−1=x-x-1=x−x−1= ________.
0
1
2
x+x=x+x=x+x= ________.
Is the sentence true or false?
x=(sinhx)2.x=(\sinh x)^2.x=(sinhx)2.
True
False
x+x−1=x+x-1=x+x−1= ________.
x sinhsinhx=x\ \sinh\sinh x=x sinhsinhx= ________.
sinh2x
x=1sinh xx=\frac{1}{\sinh\ x}x=sinh x1 .
2cos h (x) sin h(x) = sin h(2x)
x=1sinhxx=\frac{1}{\sinh x}x=sinhx1 .
x−x=x-x=x−x= ________.
x=1cosh xx=\frac{1}{\cosh\ x}x=cosh x1 .
It is done.