Secant(180+A).tan(180+A). cosecant (90+A)/secant(-A).cot(90+A)
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AnswEr:
Given
⎩
⎪
⎪
⎨
⎪
⎪
⎧
FirstTerm(a)=17
LastTerm(L)=350
CommonDifference(d)=9
FormulaFortheLastTermis−
l=a+(n−1)d
†
PuttingValues−
= (n -1)⟹
9
333
=(n−1)
= 37:⟹(n−1)=37:⟹(n−1)=37:⟹(n−1)=37
:
= 37 + 1:⟹n=37+1⟹n=37+1:⟹n=37+1
::⟹
n=38
:
ThereforeGivenAPContains38Terms.
NowFindingSum−
= \dfrac{n}{2} (a +l)::⟹S
= ⟹S
⟹19×367:
::⟹
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Answer:
Secant(180+A).tan(180+A). cosecant (90+A)/secant(-A).cot(90+A)
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