cosФ/1-sinФ+1-sinФ/cosФ=2secФ
Answers
Answered by
1
Step-by-step explanation:
1+sinФ/cosФ+cosФ/1+sinФ=2secФ
LHS=1+sinФ/cosФ+cosФ/1+sinФ
=[1+sinФ]²+cos²Ф/cosФ[1+sinФ]
=1+2sinФ+sin²Ф+cos²Ф/cosФ[1+sinФ]
=1+1+2sinФ/cosФ[1+sinФ] ..............[as sin²Ф+cos²Ф=1]
=2+2sinФ/cosФ[1+sinФ]
=2[1+sinФ]/cosФ[1+sinФ]
=2/cosФ
=2secФ
rahulgrover033:
please mark it as braineist answers and follow me
thanks
and follow me please
Answered by
1
Answer:it is very simple . First solve LHS .
Step-by-step explanation: see the attachment below .mark answer as brainlist.
Attachments:
Similar questions