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el bueno
Lv 5
el bueno asked in Ciencias y matemáticasMatemáticas · 1 decade ago

ayudenme a demostrar la siguiente identidad¡¡¡¡?

(1+tan^x a)(cos a + sen a) = (1 + tang a) sec a

ayuda me urge, agradeceria su ayuda.

2 Answers

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  • Geum
    Lv 5
    1 decade ago
    Favorite Answer

    Ok, dale a x: x=2

    tendríamos:

    (1+tan^2 a)(cos a + sen a) = (1 + tang a) sec a

    Resolvemos en el primer miembro:

    (1+tan^x a)(cos a + sen a) =

    (sec²a)(cosa+sena)

    (seca)(seca.cosa+seca.sena)

    (seca)(1+tga).......demostrado

  • WBETO13
    1 decade ago

    Hola, estás seguroq el primer factor del miembro izquierdo está correctamente escrito? "Elevado a la x"?

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