Sa se verifice egalitatile: a)sin4x+2sin2x=4sin2x* b) c) d).... Idea question from @BlackSniper

February 2019 1 593 Report

Sa se verifice egalitatile:
a)sin4x+2sin2x=4sin2x* $cos^{2} x$
b) $(7+ cos4x) ^{2} =32(1+ sin^{8} x+ cos^{8} x)$
c) $\frac{sin2a}{1+cos2a} * \frac{cosa}{1+cosa} =tg \frac{a}{2}$
d) $\frac{1-2tga*ctg2a}{1+2ctga*ctg2a} =tg^{2}a$

Efectuati: a)[(-2x)^4-2^4x^4]:(0,05(36)xy^2)^3;xy /=0; (egal taiat) b)(rad11/rad13-rad11 x+rad13/rad13-rad11 x)[(rad13-rad11)^3]^2; c)1/2-rad3 x^2 -3+[1/2+rad3 x^2+3(1-x)] d)[(rad23x-rad21)*(rad23x+rad21)]^40 :[(23x^2-21)^8]^5; x apartine lui Q Multumesc mult!

Answer

BlackSniper February 2019 | 0 Replies

Calculati: Multumesc mult!

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BlackSniper February 2019 | 0 Replies

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BlackSniper February 2019 | 0 Replies

Answer

BlackSniper February 2019 | 0 Replies

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BlackSniper February 2019 | 0 Replies

Answer

BlackSniper February 2019 | 0 Replies

Sa se arate ca: a) b) c) d) e)Acel A cu caciulita arata ca acolo sunt grade (cos12grade,sin12grade...)si el nu se afla in enunt.Multumesc mult!

Answer

BlackSniper February 2019 | 0 Replies

Sa se demonstreze ca daca intre laturile triunghiului ABC exista relatia abc(a+b+c)=16,triunghiul este echilateral.Multumesc mult!

Answer

BlackSniper February 2019 | 0 Replies

Se considera punctele A,B,C,D varfuri ale unui patrulater convex. Ce conditii indeplineste ABCD daca vectorii de pozitie ai varfurilor verifica relatia Multumesc mult!

Answer

Efectuati: a)[(-2x)^4-2^4x^4]:(0,05(36)xy^2)^3;xy /=0; (egal taiat) b)(rad11/rad13-rad11 x+rad13/rad13-rad11 x)[(rad13-rad11)^3]^2; c)1/2-rad3 x^2 -3+[1/2+rad3 x^2+3(1-x)] d)[(rad23x-rad21)*(rad23x+rad21)]^40 :[(23x^2-21)^8]^5; x apartine lui Q Multumesc mult!

Calculati: Multumesc mult!

Sa se arate ca: a) b) c) d) e)Acel A cu caciulita arata ca acolo sunt grade (cos12grade,sin12grade...)si el nu se afla in enunt.Multumesc mult!

Sa se demonstreze ca daca intre laturile triunghiului ABC exista relatia abc(a+b+c)=16,triunghiul este echilateral.Multumesc mult!

Se considera punctele A,B,C,D varfuri ale unui patrulater convex. Ce conditii indeplineste ABCD daca vectorii de pozitie ai varfurilor verifica relatia Multumesc mult!

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Efectuati: a)[(-2x)^4-2^4x^4]:(0,05(36)xy^2)^3;xy /=0; (egal taiat) b)(rad11/rad13-rad11 x+rad13/rad13-rad11 x)*[(rad13-rad11)^3]^2; c)1/2-rad3 x^2 -3+[1/2+rad3 *x^2+3(1-x)] d)[(rad23x-rad21)*(rad23x+rad21)]^40 :[(23x^2-21)^8]^5; x apartine lui Q Multumesc mult!

Calculati: Multumesc mult!

Sa se arate ca: a) b) c) d) e)Acel A cu caciulita arata ca acolo sunt grade (cos12grade,sin12grade...)si el nu se afla in enunt.Multumesc mult!

Sa se demonstreze ca daca intre laturile triunghiului ABC exista relatia abc(a+b+c)=16,triunghiul este echilateral.Multumesc mult!

Se considera punctele A,B,C,D varfuri ale unui patrulater convex. Ce conditii indeplineste ABCD daca vectorii de pozitie ai varfurilor verifica relatia Multumesc mult!

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Helpful Links

Smile Life

Get in touch

Efectuati: a)[(-2x)^4-2^4x^4]:(0,05(36)xy^2)^3;xy /=0; (egal taiat) b)(rad11/rad13-rad11 x+rad13/rad13-rad11 x)[(rad13-rad11)^3]^2; c)1/2-rad3 x^2 -3+[1/2+rad3 x^2+3(1-x)] d)[(rad23x-rad21)*(rad23x+rad21)]^40 :[(23x^2-21)^8]^5; x apartine lui Q Multumesc mult!