Cot is the inverse of tan. So as Tan30=1/sq. Rt of 3. Inverse of it is sq. Rt 3. Sin values are enough for you to know the entire table. Sin 0=0 Sin 30=1/2 Sin 60=root3/2 Sin 90=1. Write these values from last to first to get cos values. Divide sin and cos to get tan values. Inverse values of sin,cos,tan=cosec,sec,cot values. There, you’re done with the table.
Sin:-
Sin 30′=1/2
Value came from-
Square root of 1/4=1/2 =Sin30
Square root of 2/4=Sin 45
Square root of 3/4= Sin 60
Square root of 4/4= Sin90
Just like Cos value is reciprocal of Sin-
Cos 60= value of Sin 30=1/2
Cos 45= value of Sin 45
Cos 30= value of Sin 60
More mathematics answer with and great tricks can visit and check them all.
Answers & Comments
Step-by-step explanation:
Cot is the inverse of tan. So as Tan30=1/sq. Rt of 3. Inverse of it is sq. Rt 3. Sin values are enough for you to know the entire table. Sin 0=0 Sin 30=1/2 Sin 60=root3/2 Sin 90=1. Write these values from last to first to get cos values. Divide sin and cos to get tan values. Inverse values of sin,cos,tan=cosec,sec,cot values. There, you’re done with the table.
Sin:-
Sin 30′=1/2
Value came from-
Square root of 1/4=1/2 =Sin30
Square root of 2/4=Sin 45
Square root of 3/4= Sin 60
Square root of 4/4= Sin90
Just like Cos value is reciprocal of Sin-
Cos 60= value of Sin 30=1/2
Cos 45= value of Sin 45
Cos 30= value of Sin 60
More mathematics answer with and great tricks can visit and check them all.
HOPE IT HELPS YOU
MAKE ME AS BRAINLIST