` (theta _(1) + theta_(2))` का मान ज्ञात कीजिए |
`tan (theta_(1) + theta_(2)) = (tantheta_(1) + tentheta_(2))/(1 - tan theta_(1). tantheta_(2))`
जहाँ, ` tan theta(1) = (1)/(2) ` और ` tan theta_(2) = (1)/(3)` .

Explanation

`tan (theta_(1) + theta_(2)) = (tantheta_(1) + tentheta_(2))/(1 - tan theta_(1). tantheta_(2))= ((1)/(2) + (1)/(3))/(1-(1)/(2)xx(1)/(3)) =((3+2)/(6))/(1-(1)/(6)) = ((5)/(6))/((5)/(6)) = 1 = tan 45^(@)`
` rArr theta _(1) + theta_(2) = 45^(@)`