Tuesday, April 7, 2015

[AM_FTCA20150402] cos times cos causes cos plus cos

Question

This question involves formulas related to compound angles, specifically a product to sum formula and double angle formulas involving cosines.

Important Formulas

Solution


Suitable Levels
GCE ‘O’ Level Additional Mathematics
* revision for GCE ‘A’ Level H2 Mathematics
* revision for IB Mathematics HL / SL
* other syllabuses that teach further trigonometry



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