Question

rectangle is a rhombus.
(e) In AABC, the ratio /A: /B/C is 12:11:1 Prove that the value of tan /B is
√5+ √3+ √2+2
You may take the help of the following identities
b)cos (A - B) = cosAcosB + sinAsinB
1+ cos2x
(ii)cot x =
1-cos2x​

Answer 1

Answer:

(e) In AABC, the ratio /A: /B/C is 12:11 :1 Prove that the value of tan /B is√5+ √3+ √2+… ... √5+ √3+ √2+2. You may take the help of the following identities b)cos (A - B) = cosAcosB + sinAsinB