Math, asked by sonusharma45, 5 months ago

solve this plzz mate ​

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Answers

Answered by Anonymous
0

Answer:

plz mark me on brain list OK

Answered by tennetiraj86
1

Answer:

\huge{\boxed{\rm{\red{answer=CosA}}}}

Step-by-step explanation:

Given that:-

(SecA+TanA)(1-SinA)

=>(1/Cos A+Sin A/Cos A)(1-SinA)

=>(1+SinA)(1-SinA)/CosA

=>(1-Sin²A)/CosA

=>Cos²A/CosA

=>CosA×CosA/CosA

=>CosA

(SecA+TanA)(1-SinA)=Cos A

Used formulae:-

  • SecA=1/CosA
  • TanA=SinA/CosA
  • Sin²A+Cos²A=1
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