Recommended Questions
- Evaluate the following: cos 80^0cos 20^0+ sin 80^0 sin 20^0
Text Solution
|
- (2cos 40^0-cos 20^0)/(sin 20^0)=
Text Solution
|
- सिद्ध कीजिय की sin 40^@ + sin 20^@ - sin 80^@ = 0
Text Solution
|
- sin 20^(0) sin 40^(0) sin 60^(0) sin 80^(0) का मान (1)/(16) होता है।
Text Solution
|
- Prove that: "sin"20^0"sin"40^0"sin"60^0"sin"80^0=3/(16)
Text Solution
|
- Evaluate the following: cos 47^0cos 13^0-sin 47^0 sin 13^0
Text Solution
|
- Evaluate the following: cos 80^0cos 20^0+ sin 80^0 sin 20^0
Text Solution
|
- Prove that: \ cos 20^0cos 40^0cos 80^0=1/8
Text Solution
|
- Prove that: \ sin 50^0+sin 10^0=cos 20^0
Text Solution
|