Trigonometric and hyperbolic functions

1- cos²x = ?

• -1

• Sinh² x

• sin x²

• sin² x

Cosh x =?

• e^x + sinhx

• e^-x - sinhx

• e^x + sinh 2x

• e^x - sinhx

Cosh x = ?

• e^-x + sinhx

• e^x + sinhx

• e^-x - sinhx

• e^x - sinhx

Sinh² x = ?

• (cosh 2x +1)/2

• (1- cosh 2x)

• (cosh² -1)/2

• (cosh 2x -1)/2

Sinh² x= ?

• cosh²x -1

• cosh2x -1

• cosh²x+1

• cosh 2x +1

Cot²x = ?

• Cosec² x -1

• Sec² x -1

• tan²x /1

• Cosec²x +1

1 = ?

• Sinh² x - cosh² x

• Sec²x - tan²x

• Cos²x - sin²x

• Cot²x - cosec²x

Sin 2x = ?

• Sinxcosx

• Sin²xcosx²

• Sin²x/2

• 2sinxcosx

What is the derivative of y given that y=cosech x.?

• Cothx

• Cosech xcothx

• -cosechxcothx

• -sechx

What is the integration of y given that y= tanhx ?

• Cothx +c

• Sech²x +c

• ln(e^x - e^-x) +c

• ln(e^x + e^-x) + c