(tan(3pi\11) + 4sin (2pi\11) )^4 =121
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Solution: Given (tan(3pi/11) + 4sin (2pi/11) )^4 =(4sin(2pi/11)+cot(5pi/22))^4 =(2.1625+1.1540)^4 =120.9 ˜121 hence proved (tan(3pi/11) + 4sin (2pi/11) )^4=121
Hmm Brosnan is right define Packaging Supplies
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