Which substitution do we use to evaluate ſ tan³x sec³x dx ? u = sec x Both suggested substitutions are correct O the above O the above u = tan x O the above

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Which substitution do we use to evaluate ſ tan³x sec³x dx ?
Both suggested substitutions
u = sec x
are correct
the above
O the above
u = tan x
the above
Transcribed Image Text:Which substitution do we use to evaluate ſ tan³x sec³x dx ? Both suggested substitutions u = sec x are correct the above O the above u = tan x the above
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