How to remember all the trignometric value easy way
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At your standard all you need to learn is the key values like 0°, 30°, 45°, 60°, 90°, 120°, 180°
You need to remember the sin values upto 90, no doubt.
Cos values from 0 to 90 are similar to those of sin 90 to 0.
Tan = sin / cos
The values after 90 are the opposite.
Here are the values -
Function 0 30 45 60 90 120 180
Sin 0 1/2 1/r2 r3/2 1 -r3/2 0
Cos 1 r3/2 1/r2 1/2 0 -1/2 -1
Tan 0 1/r3 1 r3 inf. -r3 0
r= square root of
inf = infinite
Another appreciable idea is write on a paper all the above mentioned values and stick it on the walls of your room. Read it everyday and you will remember in no time.
Hope ypu liked it.. Have a great day
☺☺
You need to remember the sin values upto 90, no doubt.
Cos values from 0 to 90 are similar to those of sin 90 to 0.
Tan = sin / cos
The values after 90 are the opposite.
Here are the values -
Function 0 30 45 60 90 120 180
Sin 0 1/2 1/r2 r3/2 1 -r3/2 0
Cos 1 r3/2 1/r2 1/2 0 -1/2 -1
Tan 0 1/r3 1 r3 inf. -r3 0
r= square root of
inf = infinite
Another appreciable idea is write on a paper all the above mentioned values and stick it on the walls of your room. Read it everyday and you will remember in no time.
Hope ypu liked it.. Have a great day
☺☺
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