If sinθ= 1/2, and 0°< θ< 180°, the smaller value of θ is __° and the larger value of θ is __°.

the smaller value of θ is 30° and the larger value of θ is 150°.

Step-by-step explanation:

We know, for the notable angles and values of the trigonometric functions (you can find a lot of tables of it) that sin(30°) = 1/2 and also that sin(150°) = 1/2

Then if 0°<θ<180°, the smallest value of θ is 30°, and the biggest value is 150°

You also can use the inverse function

if sinθ= 1/2

then θ= asin(1/2)

the 4th choice is the correct one

step-by-step explanation: