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" 20.Write the value of "|[sin20^(@),-co...

" 20.Write the value of "|[sin20^(@),-cos20^(@)],[sin70^(@),cos70^(@)]|

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cos70^(@)+sin40^(@)=

cos70^(@)+sin40^(@)=

|["cos"70^(@), "sin"20^(@)], ["sin"70^(@), "cos"20^(@)]|=?

The value of (sin 20^(@) cos 70^(@)+sin70^(@) cos 20^(@) ) is ……….. .

Write the value of |sin20o-cos20osin70ocos70o| .

Find the value of sin^(2)20^(@)+sin^(2)70^(@)

(sin70^(@)+cos40^(@))/(cos70^(@)+sin40^(@))

The value of (sin10^(@)+sin20^(@))/(cos10^(@)+cos20^(@)) equals

The value of (sin10^(@)+sin20^(@))/(cos10^(@)+cos20^(@)) equals

cos 70^(@) + sin 40^(@)=