📺 Subscribe Our YouTube Channels: Doubtify JEE | Doubtify Class 10

Search Suggest

Limits
Limits

Limits Logarithm and Sec Function Trick

❓ Question Evaluate: lim ⁡ x → 0 ln ⁡ ( sec ⁡ ( e x ) sec ⁡ ( e 2 x ) sec ⁡ ( e 3 x ) ⋯ sec ⁡ ( e 10 x ) ) e 2 − e 2 cos ⁡ x \lim_{x\to0} \frac{ …

Evaluate Limit Using Standard Approximations

❓ Question Evaluate the limit: lim ⁡ x → 0 + tan ⁡  ⁣ ( 5 x 1 / 3 )   ln ⁡  ⁣ ( 1 + 3 x 2 ) ( tan ⁡ − 1 ( 3 x ) ) 2   [   e 5 x 4 / 3 − 1   ]​ ?…

Continuity at Zero for Tan and Sin Expression

❓ Question: If the function f ( x ) = tan ⁡ ( tan ⁡ x ) − sin ⁡ ( sin ⁡ x ) tan ⁡ x − sin ⁡ x​ is continuous at x = 0 x=0 , then find the value of …

Limits of Roots Using Quadratic Equation Method

❓ Question: For t > − 1 t > -1 , let α t \alpha_t ​ and β t \beta_t ​ be the roots of the equation: ( ( t + 2 ) 1 / 6 − 1 ) x 2 + ( ( t + …