Find the following integral: \(\int \frac{2-3 \sin x}{\cos^2 x}dx\)
Solution and Explanation
\(\int \frac{2-3 \sin x}{\cos^2 x}dx\)
= \(\int \bigg(\frac{2}{\cos^2 x}-\frac{3 \sin x}{\cos^2 x}\bigg)dx\)
= \(\int 2\sec^2 xdx - 3\int \tan x\sec xdx\)
= \(2 \tan x -3\sec x+C\)
Top Questions on integral
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Questions Asked in CBSE CLASS XII exam
1. Haemophilia and red-green colour-blindness is usually observed in men. Why?
2. Perform a cross (or crosses) where haemophilic daughter(s) and haemophilic son(s) are
produced in the same ratio.OR
1. Where do transcription and translation occur in bacteria and eukaryotes respectively?
2. Draw a labelled schematic sketch of replication fork of DNA.
3. A DNA segment has a total of 1000 nucleotides, out of which 240 of them are Adenine-containing nucleotides. How many pyrimidine bases does this segment possess?- CBSE CLASS XII - 2025
- Principles of Inheritance and Variation
- Name the restriction endonuclease that recognizes this sequence.
- CBSE CLASS XII - 2025
- Biotechnology
- Assertion (A): While working on Staphylococci, Alexander Fleming observed that Penicillium notatum inhibits the growth of bacteria.
Reason (R): The inhibiting chemical was commercially extracted and its full potential was established by Alexander Fleming.- CBSE CLASS XII - 2025
- human health and disease
- Differentiate between exonuclease and endonuclease.
- CBSE CLASS XII - 2025
- Biotechnology
- A Dihybrid cross is done between two parent pea plants (pure line) who differ in two pairs of contrasting traits: Seed colour and seed shape. In the F$_2$ generation the number of phenotypes and genotypes will be:
- CBSE CLASS XII - 2025
- Principles of Inheritance and Variation
Concepts Used:
Integral
The representation of the area of a region under a curve is called to be as integral. The actual value of an integral can be acquired (approximately) by drawing rectangles.
- The definite integral of a function can be shown as the area of the region bounded by its graph of the given function between two points in the line.
- The area of a region is found by splitting it into thin vertical rectangles and applying the lower and the upper limits, the area of the region is summarized.
- An integral of a function over an interval on which the integral is described.
Also, F(x) is known to be a Newton-Leibnitz integral or antiderivative or primitive of a function f(x) on an interval I.
F'(x) = f(x)
For every value of x = I.
Types of Integrals:
Integral calculus helps to resolve two major types of problems:
- The problem of getting a function if its derivative is given.
- The problem of getting the area bounded by the graph of a function under given situations.