Are you sure this isn't supposed to be in the University section? If nobody has answered it yet, you might have to post it there
How can I from the following inequality
(cosq1cosq1) + (cosq2cosq2) +(cosq3cosq3) - 2 cosq1 cosq2 cosq3-1 ≤ 0
Drive the following inequality
cosq1 cosq2 – sqrt[(sinq1sinq1)(sinq2sinq2)]≤ cosq3 ≤ cosq1 cosq2 +sqrt[(sinq1sinq1)(sinq2sinq2)]
sqrt == square root
Please help