Find the value of cos273o+cos247o+(cos73o)(cos47o)

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Grade 11Trigonometry

Find the value of cos²73^o+cos²47^o+(cos73^o)(cos47^o)

Mohammed Tameem Mohiuddin

11 Years agoGrade 11

2 Answers

vishu

11 Years ago

(2cos(60)cos(13))square --cos120--cos26

simplfy with values this is the req ans

vishu

11 Years ago

(2cos(60)cos(13))² --cos120--cos26

simplfy with values this is the req ans

i meant this

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Find the value of cos273o+cos247o+(cos73o)(cos47o)

Mohammed Tameem Mohiuddin

2 Answers

vishu

vishu

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Find the value of cos²73^o+cos²47^o+(cos73^o)(cos47^o)

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