Check and discuss the above relations in the case of angle between `0^(@) and 90 ^(@) ` whether they hold for these angles or not?

Where on the earth's surface , the value of angle of dip is 90^(@) ?

Which of the following is the angle between the lines x =0 and ax+by+c=0?

Find the ratio of the sides of a triangle whose interior angles are 30^@, 60^@, 90^@ .

Give the relation between critical angle and refractive index

Construct the bisector of a given angle /_ ABC=90^@ .

The angle between the lines y=0 and ax+by +c=0 is -

Ovserve the above table What can you say about the values of sin A and cos A ,as the value of angle A increases from 0^(@) "to" 90 ^(@) ? If A ge B then sin ge sin B , Is the true? If A ge B , then cos A ge cos B , Is it true ? Discuss.

If the sum of two angles is 90^(@) , then they are called complementary to each other.