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" 12.The value of "|[sin20^(@),-cos20^(@...

" 12.The value of "|[sin20^(@),-cos20^(@)],[sin70^(@),cos70^(@)]|" is "

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

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

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

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

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

The value of sec70^@sin20^@+cos20^@cosec70^@ is

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

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

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