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Grade: 11
        
Prove that u872722827 = 1
one year ago

Answers : (2)

Mastee
12 Points
							sin^2 6°-sin^2 12°+sin^2 18°-sin^2 24°..... upto 15 terms. sin 78°=0 sin 42°+sin 54°+ sin 66°+ + sin 18° sin 6°+ where )=0.5 (your required answer),...
						
one year ago
Umakant biswal
5349 Points
							
DEAR MASTEE 
kindly recheck the question and put a image if u have one , there are no attachment in the question . 
and also your text are not clear , 
waiting to hear from you again with a new doubt 
ALL THE BEST 
REGARDS 
one year ago
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