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Results for Sequence and Series

Introduction to Sequence and Series

Sequence: The set of numbers arranged in definite pattern is called sequence.Example: 2,4,6,8,10,12……Series: If the set of numbers arranged in definite pattern are connected either by plus or minus...

Find the sum to n terms when tn= n(n+1)-2


Arithmetic Series

Arithmetic Progression: The sequence whose common difference between the two successive terms are same is called arithmetic sequence.For example: 3,7,11,15Let a be the 1st term of the sequence. The...

Geometric Series

Introduction to Sequence and SeriesArithmetic seriesSome of the step in the note below are skipped so check the notes above as reference for easeGeometric Sequence:→The sequence whose common ratio ...

If x^2, b^2, y^2 are in AP, a, x, b and b, y, c both are in GP, prove that a, b, c are in AP.


Zinc - Extraction

Zinc• Atomic Number → 30• Melting Point → 420oC• Boiling Point → 908oCOccurrenceZinc does not occur in free state. In combined form, it exist as sulfides, oxides, carbonates etc. Some of the ...

Construct truth table for (p ⇔ q) ν (q ⇔ r)


Defects of Vision

1) Conjunctivitis/Pink eye: It is the inflammation of the conjunctiva.2) Myopia/Short-sightedness: It is a defect in which a person can see only those objects that are close to his/her eye. It prod...

The Eye and its Working

The eyes are the photoreceptor organs. They are located in the eye orbits formed by skull bones. It is about 2.5 cm in diameter and weighs 6 to 8 grams. It has three layers:1) outer fibrous coat ca...

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