ssc
Exam
Numerical Ability
Trigonometry
sec A+tan A = 2+root 5 than sinA+cosA =?
Read Solution (Total 2)
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- sec A + tan A = 2+root 5 ------------1
then, sec A - tan A = 2- root 5 ---------2
add eqn 1 & 2
2secA = 4
=> cosA = 1/2 then sinA = root3/2
sinA+cosA = (1+root3)/2
- 9 years agoHelpfull: Yes(3) No(3)
- sec A + tan A = 2+root 5 ------------1
then, sec A - tan A = 2- root 5 ---------2
add eqn 1 & 2
2secA = 4
=> cosA = 1/2 then sinA = root5/2
sinA+cosA = (1+root5)/2
- 9 years agoHelpfull: Yes(0) No(3)
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