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@Apu
Note for OP
+solved @user1 @user2... to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.For option A the diff of tanx is sec^2x which is always positive so tanx should be increasing?
sec ki defining, same thing in b option
Can u elaborate
jis point par derivative defined hi nahi hai udhar increase/decreate par kaise comment kar doge
tan ka derivative = sec^2 is not defined at (n+1)pi/2
Same thing in b part, derivative not defined at -2
@Real potato in simple language capt is trying to say that the both functions are surely increasing in their domain but not in R
Acha got it
+solved @Priyam Alok @Captain Cool
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