Question

cosB/(1-sinB)=+1+sinB)/cosB​

Answer 1

Step-by-step explanation:

$\frac{cos \: b}{1 - sin \: b}$

Multiply numerator and denominator by 1 + sin b

$\frac{cos \: b}{1 - sin \: b} \times \frac{1 + sin \: b}{1 + sin \: b} \\ \frac{cos \: b(1 + sin \: b)}{1 - {sin}^{2}b }$

Now denominator is equal to

${cos}^{2} b$

By trigonometric identity.

$\frac{1 + sin \: b}{cos \: b}$

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