Find approximate values this is a calculator question round

Find approximate values (this is a calculator question) (round to hundredths) for:

a) cos (65° 30\' )

b) All , 0 < 2 such that sin = 0.145

Solution

By using caliculator

a) answer is 0.41469324265

b) answer teta value is 8.33727918891

we can caliculate these using scientific caliculator , hope u got ur answer , if any doubts reply me ,i will help my best .