English

Θθ11-sinθ+11+sinθ = 2sec2θ - Mathematics 2 - Geometry [गणित २ - भूमिती]

Advertisements
Advertisements

Question

`1/(1 - sinθ) + 1/(1 + sinθ)` = 2sec2θ

Sum

Solution

डावी बाजू = `1/(1 - sinθ) + 1/(1 + sinθ)`

= `((1 + sinθ) + (1 - sinθ))/((1 - sinθ)(1 + sinθ))`

= `(1 + sinθ + 1 - sinθ)/((1 - sinθ)(1 + sinθ))`

= `2/(1 - sin^2θ)`

= `2/cos^2θ` .....[∵ 1 - sin2θ = cos2θ] 

= `2 xx 1/cos^2θ`

= 2sec2θ

= उजवी बाजू

∴ `1/(1 - sinθ) + 1/(1 + sinθ)` = 2sec2θ 

shaalaa.com
त्रिकोणमितीय नित्यसमानता
  Is there an error in this question or solution?
Chapter 6: त्रिकोणमिती - संकीर्ण प्रश्नसंग्रह 6 [Page 138]

APPEARS IN

Balbharati Geometry (Mathematics 2) [Marathi] 10 Standard SSC Maharashtra State Board
Chapter 6 त्रिकोणमिती
संकीर्ण प्रश्नसंग्रह 6 | Q 5. (6) | Page 138
Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×