Spot the odd one out

Exercise and reference answers

Questions

1. Items

   1. sin A
   2. cos A
   3. tan A
   4. cosec A

   Odd item

   cosec A

2. Items

   1. sin A
   2. cosec A
   3. sec A
   4. cot A

   Odd item

   sin A

3. Items

   1. Identity
   2. Hypotenuse
   3. Opposite
   4. Adjacent

   Odd item

   Identity

Instructions

Tap the one that does not belong with the rest.

Explanation