13 lessons,

1h 35m

Enroll

76

✕Download

Indira Roy

B.Tech Industrial Engineering and Management|| Educator || Painting || sports ||

U

Unacademy user

Gireesh Kumar SINGH

7 months ago

How to find range of e^x - e^-x

1

Reply

Ashish Bajpai

7 months ago

It is increasing function , differentiate it and you will find it's derivative positive , now substitute -infinity , you will find - infinity and and then substitute +infinity then output will be infinity so range will be all real numbers

UNITS AND DIMENSIONS

3 QUANTITY ADOPTED AS Z A STANDARD OF MEASUREMENT

UNITS OF MASS,LENGTH AND TIME THEY ARE FUNDAMENTAL BECAUSE: 3 1. Well defined and independent to each other Independent of physical conditions 3. Can be easily expressed in their terms raised to various powers

3 THE UNITS OF PHYSICAL QUANTITIES WHICH DERIVED FROMM FUNDAMENTAL UNITS OF LENGTH, MASS AND TIME.

3 FIXED AND REAL VALUE OF ANY PHYSICAL QUANTITYIS INVERSELY PROPORTIONAL TO ITS NUMERICAL VALUE,i.e or

1. Must be universal of proper size and magnitude. 3 2. Must not be affected by variations in temperature, pressure and time RS O3. Should be easily definable and reproducible