Trigger the revolution of no more common sense problems

Geometry Level 3

True or false? 

          SIN(64)>SIN(32)COS(32)+COS(32)SIN(16)COS(16)+COS(32)COS(16)SIN(8)COS(8)+COS(32)COS(16)COS(8)SIN(8)
False True

Aaryan Vaishya by aaryan vaishya , 14, USA

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1 solution

Aaryan Vaishya
Aug 6, 2019

I just overused the identity sin(x+y)=sinxcosy+cosxsiny. (Note that LHS=RHS but i put an > )

0 Helpful 0 Interesting 0 Brilliant 1 Confused

Or just use the double-angle formula for sin three times.

Richard Desper - 1 year, 10 months ago

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