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सारणिक |{:(cos70^(@),sin20^(@)),(sin70^(...

सारणिक `|{:(cos70^(@),sin20^(@)),(sin70^(@),cos20^(@)):}|` का मान ज्ञात कीजिए।

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

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

(2cos40^(@)-cos20^(@))/(sin20^(@))

(2cos40^(@)-cos20^(@))/(sin20^(@))

sec70^(@)sin20^(@)+cos20^(@)cosec70^(@)=2

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

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

sec70^(@)sin20^(@)+cos20^(@)"cosec"70^(@)=?

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

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