Q3 of 268 Page 4

Find the numerical value of the following :
sin 90° – cos 0° + tan 0° + tan 45°

We know that

Sin (90^o) = 1

Cos (0^o) = 1

Tan(0^o) = 0

Tan(45^o) = 1

Now putting the value, we get

= 1 – 1 + 0 + 1

= 1

Find the numerical value of the following :

2sin²30° – 3cos² 45° + tan² 60ׄ°

Find the numerical value of the following :

sin 90° + cos 0° + sin 30° + cos 60°

Find the numerical value of the following :

where π = 180°

Find the numerical value of the following :

Find the numerical value of the following :sin 90° – cos 0° + tan 0° + tan 45°