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Exercise 2.1
Question 1: Find the principal value of cosec−1 (− 1/ 2)
Answer 1:
Question 1: Prove that 3sin−1x = sin−1 (3x − 4x3 ), x ∈ [− (1/2) , (1/2)].
An
IUPAC system and IUPAC rules of naming hydrocarbon
IUPAC stands for International Union of Pure and Applied Science
Nomenclature
Organic chemistry is that branch of chemistry which deals with the study of compounds of carbon with hydrogen (hydrocarbons), and their derivatives.
Human heart:
Human heart is divided into different chambers internally. 1 or 2 auricles and 1 or 2 ventricles, these are called true chambers. Study of heart is called cardiology.
(1) Fishes have a heart with 2 chambers (
Forms of Stem:
Strong Stem:
The following terms are important in relation to strong stems.
Question 1: Find the value of cos −1 (cos (13π/6)).
Answer 1:
Given that cos &minu
Fluid is the name given to a substance which begins to flow when external force is applied on it. Liquids and gases are fluids. Fluids do not have their own shape but take the
Types of Leaves
Depending upon the indentation or incision of lamina, the leaves are of two t
Chemical kinetics:- Branch of chemistry which deals with the study of rate of reaction, their mechanisms and factors affecting them.
CHAPTE
IUPAC system and IUPAC rules of naming ethers
Common names of ethers follow after the names of alkyl / aryl groups written as separate words in alp
Wave Optics
Light:- light is a form of energy which gives the sensation of sight.
Optics:- opti
Taxonomical Aids
Taxonomy is the branch of biology that deals with identification, naming, and classification of organisms.
Ta
Electrochemistry can be defined as the branch of chemistry which deals with the relationship between Electrical Energy and Chemical Energy taking place in Redox reactions.
The branch of science which deals with the study of different form of energy & the quantitative relationship b/w them is known as thermodynamics.
Ecology
It is a branch of science which studies the interactions among organisms and between the organism and its physical (abiotic) environm
Underground modifications of stem
Tuber :
It is the swollen tip of the underground branch or stolon. The ti
Flower:
The flower is a highly modified shoot meant essentially for the sexual reproduction of the plant.
Parts of a typical flo
Inflorescence
Thermodynamics : It is a branch of science which deals with exchange of heat energy between bodies and conversion of the heat energy into mechanical energy an
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