Question

tan 43 cot 47+ cos 43 cosec 47​

Answer 1

Step-by-step explanation:

tan43 cot(90-47)+ cos43 coesc(90-47)

tan43 1/tan43 +cos43 sec43

1+ cos 43 1/cos 43

1+1=2

Answer 2

Answer:

$tan 43 cot 47+ cos 43 cosec 47 \\ = tan 43 cot (90 - 43)+ cos 43 cosec (90 - 43) \\ = tan 43 \times tan 43 + cos 43sec43 \\ = {tan}^{2} 43 + cos43 \times \frac{1}{cos43} \\ = {tan}^{2} 43 + 1 \\ = {sec}^{2} 43$