Question: need help with 40 and 42 37-42 Evaluate the integral. 37 12 ('i - 313k) dt 38. f' (wai + (t + (sect tan' i
need help with 40 and 42

37-42 Evaluate the integral. 37 12 ('i - 313k) dt 38. f' (wai + (t + (sect tan' i + f cos2fj sin22fcos2fk)df 2 i + re'Ij+V7k dr 'cosr2i+j + sec2rk df
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