Question

(1+tan a+sec) (1+cot -cosec) = ?​

Answer 1

Answer:

2

Step-by-step explanation:

$[1+ \frac{sin}{cos} + \frac{1}{cos} ] [ 1+\frac{cos}{sin}- \frac{1}{sin}]\\( 1+ \frac{sin A + 1}{cos} ) ( 1+\frac{cosA+1}{sin})\\(\frac{cos+sin+1}{cos}) (\frac{sin+cos+1}{sinA})\\ \frac{(cos+sin)^{2}-1^{2} }{cos.sin} \\= \frac{cos^{2}+2sin.cos +sin -1}{cos.sin} \\\frac{2cos.sin}{cos.sin} = 2 \\plz mark it as brainliest$