please solve this problem
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rgupta06:
first and second both are proving
do only first
yes but something is missing. i need to know something about x y and z
i mean is the first line given and we have to prove the second
this is inverse trigonometric question
i know that. could you please write in English what it says
no e had to prove that it's solution is pi
e its we
one minute
ok. waiting
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hope helpful........
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