यदि `tan theta_(1)=1,sintheta_(2)=1//sqrt(2)`, तो `sin(theta_(1)+theta_(2))` का मान होगा -

Options

A. -1
B. 0
C. 1
D. `1//2`

Answer

c

Explanation

`tantheta_(1)=1sintheta_(2)=(1)/sqrt(2)`
`theta_(1)=45^(@)theta_(2)=45^(@)`
`sin(theta_(1)+theta_(2))=sin90^(@)=1`