Trigonometry

This question is to sexagesimal system question 2 Ex 6.1

Transcript

00:00Unit 6, Trigonometry and Bearing, Exercise 6.1, Convert the following measure of angles

00:06in minutes.

00:07Aapke paas 75 degrees hain jisko aapne convert karna hai minutes mein.

00:12Sabse pehle toh aapko in dono ka relation bilkul clear hona chahiye.

00:17One degree is just equal to 60 minutes.

00:20Agar ek degree 60 minutes ke equal hain toh 75 degrees kiske equal ho chahiye ki?

00:26Aap simply multiply kar doge.

00:2975 ko hum 60 se multiply karenge toh hamara answer minutes mein aa chahega.

00:3775 ko 6 se karenge toh 4, 5, 0 aata hai aur 1, 0 end mein add ho chahega.

00:50Means ke 75 degrees barabar hain aapke paas 4500 minutes ke.

00:59And the second part of the same question, aapke paas 120 seconds hain aur aapne inko

01:06minutes mein convert karna hai, jab hum chhote unit se bade unit ki taraf jaate hain, second

01:11chhota unit hai aur minute bada unit hai, toh hum divide karte hain.

01:16Jab hum chhote unit se bade unit ki taraf jaate hain, toh hum divide karte hain.

01:21Baat wohi hoti hai, lekin cheez agar hum divide karenge toh dekhne mein chhoti ho chahiye ki.

01:27Aap aapke paas ek minute mein 60 seconds hain.

01:30Aap simply kya karoge, ki aap 120 ko divide kar doge 60 se.

01:40Is cheez ko hum fraction mein likhen toh hum aise likh sakte hain.

01:4300 se cancel ho chahega, 12 divided by 6 will be 2, toh aapke paas se aajayega 2 minutes.

01:51In the third part, aapke paas 50 degrees hain, 40 minutes hain, aapne isko minutes mein convert

01:56karna hai.

01:57Aap ek degree ke andar toh 60 minutes hota hain.

02:01So simply hum kya karenge, hum 50 se multiply kar denge 60 ko aur jo already humaari quantity

02:09minutes mein hain, usko hum as it is add up kar denge.

02:145, 6 aur 30, 2, 0 yaha se aajayenge, agar hum in dono ko add karenge toh we will get

02:263, 0, 4, 0 minutes, that's it.

02:31In the fourth part, aapke paas 30 degrees hain, 30 minutes hain, aur 30 seconds hain.

02:36Aapne in saare quantities ko convert kar dena hai minutes ke andar.

02:42Ab 1 degree is equals to 60 minutes, 1 minute is equals to 60 seconds, and 1 degree is equals

02:53to 3600 seconds.

02:56Ye humaara sexagesimal system ki conversion hain.

03:01Ab kya karenge, sabse pehle hum degrees ko lenge.

03:04Aapne degrees ko convert karna hai minutes mein, toh aap simply 60 se multiply kar doge.

03:13Second quantity already minutes mein hain, isko sirf hum add up karenge.

03:18Aur third quantity, jo humaari seconds mein hain, ab hum chhote unit se bade unit ke tarah

03:24jaayenge toh hum divide karenge.

03:26Hum simply 30 ko divide kar denge 60 se, toh ye bhi minutes mein convert ho jayega.

03:343 into 6 is 18, 2 zeros 30, aur 30 divided by 60 aapke paas simply 0.5 half minute ho

03:45jayega ye.

03:46In saare quantities ko jab hum add up karenge, toh humaare paas aa chayega 1830.5 minutes.

03:54Ye hi humaara answer hai.