Question

if secA sinA=0,then the value of cosA is​

Answer 1

Answer:

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Step-by-step explanation:

sinA−cosA=0

⇒A=cosA

⇒tanA=1

⇒A=

4

π

sin

4

A+cos

4

A=sin

4

4

π

+cos

4

4

π

=(

2

1

)

4

+(

2

1

)

4

=

4

1

+

4

1

=

2

1

.

solution

Answer 2

Here, SecA = 1/ cos A. secA × sinA =0 (given). 1/ cosA × sinA=0. sinA/cosA = 0. tan A = tan 0 [we used sinA/cosA = tanA, ...

Top answer · 6 votes

Here, SecA = 1/ cos AsecA × sinA =0 (given)1/ cosA × sinA=0sinA/cosA =0tan A