Question

find the value of this ​

Answer 1

Refer the above pic....

Hope it helps you please mark me as brainleast and thank my answers....

Advancly Happy New year....

Answer 2

Answer:

tan  

−1  (1)+cos  −1  (− 2 ​ )+sin  −1  (−  2 1   )

⇒tan  −1  (tan  4 π ​ )+cos  −1  (cos  3 2π  )+sin  −1  (sin  6 7π  )

⇒   π /4 + 2π  /3+  7π/6

⇒   3π+8π+14π

------------------

​ 12

⇒  12 /25π

​ u said u will type

Step-by-step explanation: