Question

if (1+cosA) (1-cosA) is 3/4 find value of secA

A seed
find value​

Answer 1

Answer:

$(1 + \cos(a) )(1 - \cos(a) ) = \frac{3}{4} \\ - { \cos }^{2} a = \frac{3}{4} - 1 \\ - { \cos }^{2} a = - \frac{1}{4} \\ \cos \: a = \frac{1}{2} \\ so \: sec \: a \: = \frac{1}{ \cos } \\ \sec(a) = 2$

#hope it help uh.

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Answer 2

Step-by-step explanation:

sec(a)=2

hope it help you mate