Question

this this question is show that the question is equals to 1 so I have done like this is this correct or not pls tell and tell the truth it is correct or not if wrong then please solve this for me with explanation​

Answer 1

Step-by-step explanation:

hey .your approach is wrong as in the last where m×m in your answer must m^2 but then it answer goes to wrong ...

see the attachment ..

thanku