Choose the correct answer in each of the following questions:
`sin(45^(@)+theta)-cos(45^(@)-theta)=?`

Choose the correct answer in each of the following questions: If sin theta=(a)/(b) " then " cos theta=?

Choose the correct answer in each of the following questions: sin47^(@)cos43^(@)+cos47^(@)sin43^(@)=?

Choose the correct answer in each of the following questions: If tan^(2)45^(@)-cos^(2)30^(@)=x sin45^(@) cos 45^(@) " then " x =?

Choose the correct answer in each of the following questions: sin^(2)30^(@)+4cot^(2)45^(@)-sec^(2)60^(@)=?

Choose the correct answer in each of the following questions: ("cosec"theta-cot theta)^(2)=?

Choose the correct answer in each of the following questions: If sin theta =(1)/(2) " then " cot theta=?

tan(45^(@)+ theta )*tan(45^(@)-theta)=

Choose the correct answer in each of the following questions: If sec theta=(25)/(7) " then " sintheta=?

Choose the correct answer in each of the following questions: If cos theta =(4)/(5) " then " tan theta=?

Choose the correct answer in each of the following questions: If cos theta =(4)/(5) " then " tan theta=?