2tan11°tan31°tan45°tan59°tan79°

Asked by jayaraja2399 | 8th Feb, 2018, 09:36: PM

Expert Answer:

begin mathsize 16px style 2 tan space 11 degree space tan space 31 degree space tan space 45 degree space tan space 59 degree space tan space 79 degree
equals 2 tan space 11 degree space tan space 31 degree space tan space 45 degree space tan space left parenthesis 90 degree minus 31 degree right parenthesis space tan space left parenthesis 90 degree minus 11 degree right parenthesis
equals 2 tan space 11 degree space tan space 31 degree space left parenthesis 1 right parenthesis space cot space 31 degree space cot space 11 degree
equals 2 cross times 1 cross times 1
equals 2 end style

Answered by Rashmi Khot | 9th Feb, 2018, 09:32: AM