Math, asked by sonu81jha, 5 months ago

(cosecA-cotA)^2 = 1-cosA/1+cosA​

Answers

Answered by skpillai636
0

Answer:

LHS

( cosecA - cotA )²

= ( 1/ sinA - cosA/sinA )²

= ( 1 - cosA/ sinA )²

= ( 1 + cosA )²/ sin²A

= ( 1 - cosA )²/ 1 - cos²A

= ( 1 - cosA ) ( 1 - cosA )/ ( 1 + cosA ) ( 1 - cosA )

= 1 - cosA / 1 + cosA

.°. RHS

Step-by-step explanation:

Answered by sandy1816
0

( {cosecA - cotA})^{2}  \\  \\  = ( { \frac{1 - cosA}{sinA} })^{2}  \\  \\  =  \frac{( {1 - cosA})^{2} }{ {sin}^{2} A}  \\  \\  =  \frac{( {1 - cosA})^{2} }{1 -  {cos}^{2}A }  \\  \\  =  \frac{1  - cosA}{1 + cosA}

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