Prove : 1 / (sec Q - tan Q) = sec Q + tan Q
Answers
Answered by
0
Answer:
Step-by-step explanation:
secQ + tanQ)(1-sinQ) = cosQ
LHS = (1/cosQ +sinQ/cosQ)(1-sinQ)
=( 1+sinQ/cosQ)(1-sinQ)
= 1-sin^2Q/cosQ
=cos^2Q/cosQ
= cosQ
Answered by
1
Step-by-step explanation:
sec^2+tan^2=1
Therefore u can multiply 1/(secQ-tanQ) by (secQ+tanQ)/(secQ+tanQ)
u will directly get the ans
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