Question

) – 1- tan8
v) cot ( 4-0) = cot8 -1
ପ୍ରମାଣ କର :
1) cos(45° - A) . COS (45° - B) - sin (459 - A), sin (45° – B) = sin (A + B)​

Answer 1

Answer:

the ans of this ques is 10