Which trigonometric functions do not have real zeros?

sine, cosine, tangent, cosecant, secant, or cotangent.

secant and cosecant have no zeroes.

Step-by-step explanation:

We have in total 6 trignometric functions as

sine, cosine, tangent, cosecant, secant, or cotangent.

Of these we have

sin is 0 for all multiples of pi

cosec = 1/sin  cannot be zero since sine value is always finite lies between -1 and 1.

Similarly sec = 1/cos  cannot be zero since cosine value is always finite lies between -1 and 1.

cotangent can be 0 for odd multiples of pi/2

Hence answer is only

secant and cosecant

the answer is 31.27mph

0,0

step-by-step explanation: