Question

Hey! Friends plz solve this ques

Answer 1

$\huge{\mathfrak{\red{ANSWER}}}$

cosA/1-sinA + cosA/1+sinA= 4


=>{cosA(1+sinA)+cosA(1-sinA)}/{(1-sinA)(1+sinA)}=4


=>cosA(1+sinA+1-sinA)\1-sin^2 A =4


=>2cosA/cos^2 A=4 ( According to Pythagorean Identity)


=>2/cosA=4


=>cosA= 2/4


=>cosA=1/2


=>A= cos^-1 (1/2)


the value of A is cos^-1 (1/2)


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hope it will help you

be Brainly☺️♥️

Answer 2

,hey mate here is ur answer.☺️☺️