Advanced Mathematics: Trigonometry Question

Dim Ray · Apr 28, 2020

Hi! kwa members wote wa JF

Straight to the point kuna haya maswali naomba msaada

1. Find CotB if CosA=1/4 and Cos(A-B)=8
2. Express CosecX+Cosec2X+Cosec4X as the difference of two Cotangents natanguliza shukurani zangu

Stay Safe Corona ain't a doll to play with

My Sons Legacy · Apr 28, 2020

Jibu niliopata limekuja na Sin B

Dim Ray · Apr 28, 2020

Next Man said:
Jibu niliopata limekuja na Sin B

jibu ni 12/31 sasa kulipata ndo shida.

maana angle A ina fit quadrant ya kwanza na ya nne

Mama Debora · Apr 28, 2020

Dim Ray said:
Hi! kwa members wote wa Jf.
Straight to the point kuna hili swali naomba msaada
find CotB if CosA=1/4 and Cos(A-B)=8

Tangu lini cosine ya angle ikawa greater than unity.
Yaani cos(A-B)=8 ???
Maajabu ya karne. Angalia vizuri hizo data zako.

Dim Ray · Apr 28, 2020

mimi nili "expand" Cos(A-B) na kuingizia value za Cos A na Sin A halafu kwa kuwa tunamtafuta Cot B nika form hii equation ingine Sin²B+Cos²B=1 halafu nika let Sin B=X na Cos B=Y.

Resulting equations zikawa hizi

X²+Y²=1..........(i)
X+√(15)Y=32.....(ii)
Hapo nime assume angle A ipo kwenye first quadrant, shida ni kwamba jibu linakuja in terms of Complex number 😰

Dim Ray · Apr 28, 2020

Mama Debora said:
Tangu lini cosine ya angle ikawa greater than unity.
Yaani cos(A-B)=8?
Maajabu ya karne. Angalia vizuri hizo data zako.

Data ziko correct

My Sons Legacy · Apr 28, 2020

Dim Ray said:
jibu ni 12/31 sasa kulipata ndo shida.

maana angle A ina fit quadrant ya kwanza na ya nne

Nadhani this is the way

Value ya Cos A = 1/4 na Sin A = √15/4
Cot B = Cos B/ Sin B

Cos(A-B)=CosACosB + SinASinB
8=(1/4)CosB + (√15/4)SinB ~Divide by Sin B both sides
8/ SinB=(1/4)CosB/SinB + (√15/4)SinB/SinB
8/Sin B= CotB/4 + √15/4 ~Times by 4 both Sides

32SinB =Cot B + √15
Cot B = 32Sin B - √15

Haya Sin B tunaipataje tuiweke hapo
[emoji38][emoji38][emoji38][emoji38]

Dim Ray · Apr 28, 2020

Next Man, hilo tuli drop mkuu basi ni save hilo la Cosec🙏

The Humble Dreamer · May 1, 2020

Tanzania mnapenda kusumbua watu..kipindi hiki kigumu cha corona we unawaza kusolve tuu wakat hamjui mnarudi lini shule

tang'ana · May 1, 2020

wahandisi mnaitwa huku..maana hizi ndio mambo zenu za kila siku

Entreprenuare · May 1, 2020

tang'ana said:
wahandisi mnaitwa huku..maana hizi ndio mambo zenu za kila siku

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Abdulhalim · May 1, 2020

Cot (B)== 3.96065568193

My Sons Legacy · May 1, 2020

Abdulhalim said:
Cot (B)== 3.96065568193

Jamaa anasema jibu ni 12/31 yani 0.3871

I'm on that good kush and alcohol

Abdulhalim · May 1, 2020

Next Man said:
Jamaa anasema jibu ni 12/31 yani 0.3871

I'm on that good kush and alcohol

who?

My Sons Legacy · May 1, 2020

Abdulhalim said:
who?

Unasoma Thread nusu nusu, alietoa swali

I'm on that good kush and alcohol

Mgiriki MTz · May 1, 2020

Wale wazee was BAM ngoja tukae pembeni

Chenchele · May 2, 2020

Mama Debora said:
Tangu lini cosine ya angle ikawa greater than unity.
Yaani cos(A-B)=8 ???
Maajabu ya karne. Angalia vizuri hizo data zako.

You're too smart!

Advanced Mathematics: Trigonometry Question

Dim Ray

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My Sons Legacy

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Dim Ray

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Mama Debora

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Dim Ray

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Dim Ray

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My Sons Legacy

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Dim Ray

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The Humble Dreamer

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tang'ana

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Entreprenuare

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Abdulhalim

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My Sons Legacy

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Abdulhalim

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My Sons Legacy

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Mgiriki MTz

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Chenchele

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