સરવાળાનાં સૂત્રો અને અવયવ સૂત્રો

ગણિત ધોરણ 11 સેમિસ્ટર 2

ગણિત

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સરવાળાનાં સૂત્રો અને અવયવ સૂત્રો

મૂલ્ય મેળવો :
$tan space open parentheses negative fraction numerator 23 space straight pi over denominator 6 end fraction close parentheses$

increment

ABC માટે સાબિત કરો :

fraction numerator sin space open parentheses straight B space plus space straight C close parentheses space times space cos space open parentheses straight B space plus space straight C close parentheses times sin space begin display style straight A over 2 end style space times space cos space begin display style straight A over 2 end style over denominator sin space open parentheses begin display style fraction numerator straight B space plus space straight C over denominator 2 end fraction end style close parentheses space times space cos space open parentheses begin display style fraction numerator straight B space plus space straight C over denominator 2 end fraction end style close parentheses times space sin space open parentheses straight pi space plus space straight A close parentheses space times space cos space open parentheses 2 straight pi space minus space straight A close parentheses end fraction space equals space 1

equals space fraction numerator sin space open parentheses straight pi space minus space straight A close parentheses space times space cos space open parentheses straight pi space minus space straight A close parentheses space times space sin space begin display style straight A over 2 end style space times space cos space begin display style straight A over 2 end style over denominator sin open parentheses begin display style fraction numerator straight pi space minus space straight A over denominator 2 end fraction end style close parentheses times cos space open parentheses begin display style fraction numerator straight pi space minus space straight A over denominator 2 end fraction end style close parentheses times open parentheses negative sin space straight A close parentheses space times space cos space straight A end fraction space space space space space space open parentheses because space straight A plus straight B plus straight C space equals space straight pi close parentheses space equals space fraction numerator sin space straight A space times space open parentheses negative cos space straight A close parentheses space times space sin space straight A over 2 space times space cos space straight A over 2 over denominator cos space straight A over 2 space times space sin space straight A over 2 space times space open parentheses negative sin space straight A close parentheses space times space cos space straight A end fraction equals space 1

increment

ABC માટે સાબિત કરો :
sin (B + C) = sin A

સાબિત કરો :

મૂલ્ય મેળવો :
$cos space 135 degree$

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