Find the value of sin` 22.5^(@) `

Find the value of tan 22.5^@

Find the value of tan22.5^(@)

Find the value of tan22.5^(@)

Find the value of (i) sin 22^(@) 30' (ii) cos 22^(@) 30' (iii) tan 22^(@) 30'

Find the value of tan 22^(@)30’

Find the value of sin^(2)5^(@)+ sin^(2)10^(@)+ sin^(2)15^(@)+* * * +sin^(2)90^(@) .

Find the value of sin(22 1/2)^@ :

Find the value of [(sin^(2)22^(@)+sin^(2)68^(@))/(cos^(2)22^(@)+cos^(2)68^(@))+sin^(2)63^(@)+cos63^(@)sin27^(@)]

(a) Find the value of followings : (i) sin 150^(@) , (ii) cos 135^(@) , (iii) cos (-30^(@)) , (iv) tan 225^(@) . (b) If cos theta =(4)/(5) . Find the value of sin theta and tan theta . (c) Find the value of sin ^(-1)(1) .

Find the value of "tan" 22^(@) 30' .