Q3 of 268 Page 4

Find the numerical value of the following :

We can write the above equation as:

= 4 cot² 60^o + sec² 30^o – sin² 45^o …(a)

Now putting the values in (a);

where π = 180°

Find the numerical value of the following :

cos60° . cos 30° – sin 60° . sin 30°

Find the numerical value of the following :