Math, asked by sohamroypr034, 5 months ago

Show that 4Cos 9=√3+√5 +√5-√5
anyone can help me...please....​

Answers

Answered by DharshiniPV
0

Answer:

hsidodjdnddete s and may be removed tbebebehhwj

Answered by abhikp91
1

Step-by-step explanation:

This problem can also be done using Algebra and if you remember the value of cos 18° etc. Else another way to derive this answer is by just remembering the value of sin18°

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