Values of trigonometric ratios at 0: 30: 45:60 and 90. (i) `sin30^0 *cos60^0 +sin60^0 *cos30^0 `

Values of trigonometric ratios at 0:30:45:60 and 90.(i)sin30^(@)*cos60^(@)+sin60^(0)*cos30^(@)

Write the values of the following trigonometric ratios . i. sin 30^(@) = ii. Cos 30^(@) = iii. tan 30^(@) = iv. sin 60^(@) = v . cos 45^(@) = vi. tan 45^(@) =

Evaluate : |(sin30^@, cos30^@),(-sin60^@, cos60^@)| .

"(1) "sin60^(@)cos30^(@)+sin30^(@)cos60^(@)

Find the value of : (i) sin 30^(@)-cos 60^(@) (ii) sin 0^(@)+cos 0^(@)

Find the value of : (i) sin 30^(@)+cos 60^(@) (ii) sin 0^(@)-cos 0^(@)

Find the value of: (tan 60^@- tan 30^@)/(1+ tan60^@ tan 30^@)+cos 60^@ cos30^@+ sin 60^@ sin30^@ .

Find the value of x in each of the following: (i) tan3x=sin45^0cos45^0+sin30^0 , (ii) cosx=cos60^0cos30^0+sin60^0sin30^0 , (iii) sin2x=sin60^0cos30^0-cos60^0sin30^0dot

The value of cos0^@ cos30^@ cos45^@ cos60^@ cos 90^@ is: cos0^@ cos30^@ cos45^@ cos60^@ cos 90^@ का मान क्या होगा ?

Find the value of (sin30^@+cos30^@)(sin60^@+cos60^@)