Question

Evaluate sec 3pi/2 to the nearest hundredth. The angle is given in radians. 0 1 undefined –1

Answer 1

$\cos\dfrac{3\pi}2=0\implies \sec\dfrac{3\pi}2=\dfrac10$

but this quantity is undefined.

Answer 2

Answer:

undefined

Step-by-step explanation:

We know that value of $cos\dfrac{3\pi}{2}=0$

Also, secx=1/cosx

Hence, $sec\dfrac{3\pi}{2}=\dfrac{1}{cos\dfrac{3\pi}{2}}$

This implies $sec\dfrac{3\pi}{2}=\dfrac{1}{0}$

i.e.  sec3π/2 is undefined