Math P-1 Very Important!!!

[Abeer Hatecrew]

I noticed that the answers in almost all mark schemes are in fractions. Will there be any problem if we answer in decimals if nothing is mentioned in the question abt the required format? Exams on tuesday Anyway best of luck to everyone!!!

 

[Zephyro]

your wish, nothing wrong in it if there isnt any instructions.

 

[confused123]

while drawing sin cos graph, we take values like pi /4 , 3 pi / 4. i face problems in converting them or quickly knowing them that how much they are in degrees. can u tell me all the conversions in pi which are used while drawing sin cos graph..

 

[confused123]

while drawing sin cos graph, we take values like pi /4 , 3 pi / 4. i face problems in converting them or quickly knowing them that how much they are in degrees. can u tell me all the conversions in pi which are used while drawing sin cos graph..

 

[user]

while drawing sin cos graph, we take values like pi /4 , 3 pi / 4. i face problems in converting them or quickly knowing them that how much they are in degrees. can u tell me all the conversions in pi which are used while drawing sin cos graph..

just remove the pi, and multiply the fraction by 180

it's actually u have to multiply by 180/pi ...so pi gets cancelled...

so just multiply the coefficient of pi with 180

 

[Gémeaux]

while drawing sin cos graph, we take values like pi /4 , 3 pi / 4. i face problems in converting them or quickly knowing them that how much they are in degrees. can u tell me all the conversions in pi which are used while drawing sin cos graph..

180° = π
360° = 2π

for any value in °(degree) divide it by 180 and multiply by π, to convert it into radians.
for a value in radians, divide it by π and multiply by 180°.
also, try memorising these,
30°= π/6 rad
45°= π/4
60°= π/3
90°= π/2
120°=2π/3
270°=3π/2
if its tym-consuming learning them, simply do it every time on ur calculator. like for 30°, it is the simplified form of 30π/180
Hope that helps =)

 

[confused123]

180° = π
360° = 2π

for any value in °(degree) divide it by 180 and multiply by π, to convert it into radians.
for a value in radians, divide it by π and multiply by 180°.
also, try memorising these,
30°= π/6 rad
45°= π/4
60°= π/3
90°= π/2
120°=2π/3
270°=3π/2
if its tym-consuming learning them, simply do it every time on ur calculator. like for 30°, it is the simplified form of 30π/180
Hope that helps =)

yes! that's exactly i wanted to know. a quicker way to remember these all while drawing the graph. Thank you.

 

[Abeer Hatecrew]

Thanks guys