Could someone help me solve these 1 (Cos 13 + sin 13)/ (cos 13 - sin 13) - Maths - Trigonometry

Question

Could someone help me solve these?

1 (Cos 13 + sin 13)/ (cos 13 - sin 13) = tan A
What is A?

2 (sin 20 cos 70 + cos 20 sin 70)/ (sin 23 cosec 23 + cos 23 sec
23)= ?

3 If tan a = 5/6 and tan b = 1/11, then what is the value of a + b
?

Amit Shukla · Accepted Answer

Kindly refer to the link for similar query,
Qno 1https://www
meritnation
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Qno 3https://www
meritnation
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Could someone help me solve these? 1. (Cos 13 + sin 13)/ (cos 13 - sin 13) = tan A What is A? 2. (sin 20 cos 70 + cos 20 sin 70)/ (sin 23 cosec 23 + cos 23 sec 23)= ? 3. If tan a = 5/6 and tan b = 1/11, then what is the value of a + b ?

Could someone help me solve these?

1. (Cos 13 + sin 13)/ (cos 13 - sin 13) = tan A
What is A?

2. (sin 20 cos 70 + cos 20 sin 70)/ (sin 23 cosec 23 + cos 23 sec 23)= ?

3. If tan a = 5/6 and tan b = 1/11, then what is the value of a + b ?