Math, asked by AbhijithJJ, 7 months ago

prove 4cos18.cos42.cos78=cos 54
please can anyone prove it?

Answers

Answered by smartoldie

1

Answer:

I'm sorry.... this is kinda difficult... like I mean I haven't yet learned these things

Answered by korthamyamini525

0

I hope it's helpful for you

Attachments:

Previous Question

Next Question

Similar questions

Math, 3 months ago

The decimal representation of 30 kg and 43kg is__________ kg...

Psychology, 3 months ago

Principal 4200Rate of interest = 7 p.c.p.a, time =3 years , Interest = ? ,amount = ?

Hindi, 3 months ago

पाठ के आधार पर बताइए कि बालगोबिन भगत लीक से हट कर चलने वालों में से थे ?

Physics, 7 months ago

which of the following denotes the smallest temperature 1. 1 degree on the celcius scale 2. 1 degree on the Kelvin scale 3. 1 degree on the Fahrenheit scale 4. 1 degree on the reaumur scale...

English, 7 months ago

Give me a short summary of the poem lokhinvar...

English, 11 months ago

Alexander,as a young man went on military campaigns with his father.(Change to complex)...

English, 11 months ago

fill in the blanks with the correct form of infinitives with or without to...

Math, 11 months ago

the diagonals of a quadrilateral PQRS intersect at O. prove that PQ2+SR2=PS2+QR2...