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Gaurav Seth 6 years, 5 months ago
Question:
Prove that:
cot2 pi/6 + cosec 5pi/6 + 3tan2 pi/6 = 6
Solution:
L.H.S.
= R.H.S.
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Meghna Thapar 5 years, 6 months ago
Dentition pertains to the development of teeth and their arrangement in the mouth.
Most adults have 32 teeth, called permanent or secondary teeth:
- 8 incisors.
- 4 canines, also called cuspids.
- 8 premolars, also called bicuspids.
- 12 molars, including 4 wisdom teeth.
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Ayush Bandhu 6 years, 5 months ago
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Safvan Mirza 6 years, 6 months ago
Posted by Ipsita Sahoo 6 years, 6 months ago
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Yogita Ingle 6 years, 5 months ago
Carboxylic Acids:Carboxylic acids are the compounds containing the carboxylfunctional group (-COOH).
- Preparation of carboxylic acid:
(i) From alcohols: Primary alcohols are readily oxidised to carboxylic acids with common oxidising agents such as potassium permanganate (KMnO4) in neutral, acidic or alkaline media or by potassium dichromate (K2Cr2O7) and chromium trioxide (CrO3) in acidic media.
(iii) From alkylbenzenes: Aromatic carboxylic acids can be prepared by vigorous oxidation of alkyl benzenes with chromic acid or acidic or alkaline potassium permanganate.
(vi) From Grignard reagent: Grignard reagents react with carbon dioxide (dry ice) to form salts of carboxylic acids which on hydrolysis forms carboxylic acids.
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Yogita Ingle 6 years, 6 months ago
If marginal utility of money begins to rise while price remains constant then this implies that marginal utility of a rupee spent on the commodity (MUx/px) is less than the marginal utility of money (MUm) ). In this case, the consumer would reduce consumption of commodity till he again finds equality between the two.
Posted by Manasa Manasa 6 years, 6 months ago
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Yogita Ingle 6 years, 6 months ago
The systematic errors are those errors that tend to be in one direction, either positive or negative.
Systematic error can be categorised into:
i) Instrumental errors that arise from the errors due to imperfect design or calibration of the measuring instrument, zero error in the instrument, etc.
ii) Imperfection in experimental technique or procedure - External conditions (such as changes in temperature, humidity, wind velocity, etc.) during the experiment may systematically affect the measurement.
iii) Personal errors that arise due to an individuals bias, lack of proper setting of the apparatus or individuals carelessness in taking observations without observing proper precautions, etc.
Posted by Parth Singla 6 years, 5 months ago
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Sia ? 6 years, 5 months ago
f = {(1, 1), (2, 3), (0, -1), (-1, -3)}
{tex} \Rightarrow {/tex} f (1) = 1, f (2) = 3, f(0) = -1, f(-1) = -3
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Sia ? 6 years, 5 months ago
- The actual distance measured from east to west is only 2933 kilometer while the distance from north to south is 3,214 kilometer.
- This difference is based on the fact that the distance between two longitudes decreases towards the poles whereas the distance between two latitudes remains the same everywhere.
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Parth Singla 6 years, 6 months ago
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Pooja Thakur 6 years, 5 months ago
1Thank You