Answers

  • Brainly User
2014-07-24T18:50:17+05:30
Learn the sin 0,30,45,60 and 90 and then reverse the values...in cos! like
sin0=0,sin30=1/2,sin45(root)1/2,sin60= (ROOT)3/2,sin90=1
then reverse the values..
cos0=1,cos30=(ROOT)3/2,cos45=(ROOT)1/2,cos60=1/2 and cos90=1

similarly learn the values of tan ...and reverse values will be the values of cot.
0
2014-07-25T14:30:25+05:30

²if you reverse it it be the value for COSINE ...then divide SIN/COS then it will be value for tan ...and so on...let me simplify it

0     30     45       60      90

0     1         2        3        4             now divide each no by 4 

0/4 ,  1/4   2/4,   3/4,    4/4       take sqr root of each no

0,     1/2,  1/√2, √3/2     1      .....   these are the value SIN 0,30,45,60,90  respectively...


0