Show that the function defined as
is continuous on its domain, but not uniformly continuous there. Will the function be uniformly continuous on
for any fixed c > 0?
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Show that the function defined as
is continuous on its domain, but not uniformly continuous there. Will the function be uniformly continuous on
for any fixed c > 0?
State whether the following statements are true or false. Justify your answers with a short proof or a counterexample.
i) The negation of is
.
ii) is countable.
iii) The equation has a real root between -2 and 1.
iv) Every increasing sequence has a convergent subsequence.
v) The function defined as
has a removable discontinuity.
vi) An integrable function can have finitely many points of discontinuity.
vii) The series is divergent.
viii) The function f defined by , has local maximum at
.
ix) Every constant function on [a, b] is Riemann Integrable.
x) The function defined by
is differentiable at
.
Disprove the statement:
by providing a suitable counter-example.
उपयुक्त प्रति उदाहरण देकर इस कथन को असिद्ध कीजिए:
प्रत्येक तथा
के लिए
है।
जाँच कीजिए कि अनुक्रम , जिसे इस प्रकार से परिभाषित किया जाता है:
, और
.
अभिसारी है या नहीं।
मान लीजिए कि f तथा g, R[a, b] में हैं। तब दिखाइए कि फलन f + g भी R[a, b] में हैं, तथा .
Test the convergence of the series: .