यदि ` ( cos theta - sin theta )/( cos theta + sin theta )=(1- sqrt(3))/( 1+sqrt(3))` , तो न्यून कोण ` theta ` का मान ज्ञात करो ।

Explanation

दिया है :
` ( cos theta - sin theta )/( cos theta + sin theta )=(1-sqrt(3))/(1+ sqrt(3))`
` implies ((cos theta - sin theta )+ ( cos theta + sin theta ))/(( cos theta - sin theta )-( cos theta + sin theta ))=((1-sqrt(3))+ (1+sqrt(3)))/((1-sqrt(3))-(1+sqrt(3)))` [ योगान्तर अनुपात लगाने पर ]
` implies( 2 cos theta )/( -2 sin theta )=(2)/(-2sqrt(3))`
`implies cot theta =(1)/(sqrt(3))`
`implies tan theta =sqrt(3) implies tan theta =tan 60^(@)implies theta =60^(@)`