Question

TI tan2 = sin? 0 + sin?" + sin?" ) 4 1 a) blo 2 c)1 d)- 2 18 C) -1/1​

Answer 1

Solution

Rational Number : A rational number is a fractional number which is in the form of a p/q , where q is ≠ 0.

Some examples are 2/5,3/6,7/8 , 2/3, 2/9 and so on.

Here , see the denominator 5,6,8,9 &3 all are >0

=>Rational number can be further converted into decimal form e.g., 1/2= 0.5

Learn more:

Types

Real Numbers ( real numbers includes all the integers )

Natural Numbers

Whole Numbers

Standard form of Rational Number:

Rational number having fractional values with no common factor between dividend and divisor and Divisor be positive.

e.g., 12/36= 2/6= 1/3

Answer 2

Answer:

समतल दर्पण से प्रकाश का परावर्तन- प्रकाश की किरण , जब समतल दर्पण पर पडती है, वह कुछ नियमों के अनुसार परावर्तित हो जाती है, इन्हें प्रकाश के परावर्तन के नियम कहते हैं।