A problem by Albert Go

Level pending

What is sin ⁡ 12 cos ⁡ 33 + cos ⁡ 12 sin ⁡ 33 cos ⁡ 23 cos ⁡ 22 − sin ⁡ 23 sin ⁡ 22 log ⁡ 100 log ⁡ 10000 \frac { \frac { \sin { 12 } \cos { 33 } +\cos { 12 } \sin { 33 } }{ \cos { 23 } \cos { 22 } -\sin { 23 } \sin { 22 } } }{ \frac { \log { 100 } }{ \log { 10000 } } } Equivalent to?


The answer is 2.

Albert Go by Albert Go , 33, Philippines

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1 solution

Albert Go
Feb 12, 2015

sin12cos33+cos12sin33=sin 45, cos23cos22-sin23sin22=cos45,
sin45/cos45=tan45=1, log 100=2, log 10000 = 4, 2/4=1/2 1 divided by 1/2 is equal to 2.

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