![Find the value of tanA+tanB+tanC/sin2A+sin2B+sin2c](https://www.gkseries.com/blog/wp-content/uploads/2024/04/Find-the-value-of-tanAtanBtanC-sin2Asin2Bsin2c.jpg)
Find the value of
![](https://www.gkseries.com/blog/wp-content/uploads/2024/04/image-257-1024x226.png)
if A + B + C = 0
(a) ½ cosA cosB cosC
(b) ¼ secA secB secC
(c) ½ secA secB secC
(d) ½ secA cosB cosecC
Sol:
As we know that: tanA + tanB + tanC = tanA tanB tanC
Sin2A + sin2B + sin2C = 4 sinA sinB sinC
![](https://www.gkseries.com/blog/wp-content/uploads/2024/04/image-258-1024x119.png)
Find the value of
if A + B + C = 0
(a) ½ cosA cosB cosC
(b) ¼ secA secB secC
(c) ½ secA secB secC
(d) ½ secA cosB cosecC
Sol:
As we know that: tanA + tanB + tanC = tanA tanB tanC
Sin2A + sin2B + sin2C = 4 sinA sinB sinC
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