###### Question 27 (**Textile Technology & Fibre Science**)

Let ( is the set of real numbers) be defined by

If and denote partial derivatives of with respect to and at the point respectively, then and , respectively, are

(A) | |

(B) | |

(C) | |

(D) |

**[Show Answer]**

Option C is correct

###### Frequently Asked Questions | FAQs

### What is real number ?

A real number is a number that can represent any value on the number line, which includes both positive and negative numbers as well as zero. Real numbers can be represented as either a fraction (such as 1/2), a decimal (such as 0.5), or an irrational number (such as the square root of 2). The set of real numbers is a continuous and infinitely large set, and includes all rational and irrational numbers. Real numbers are used in a variety of mathematical fields, including calculus, linear algebra, and number theory, and play an important role in many areas of science and engineering.