 ×     #### Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Click to Chat

1800-1023-196

+91-120-4616500

CART 0

• 0

MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping
```
If a sec x – c tan x = d and b sec x + d tan x = c , then prove that a² + b² = c² + d²

```
2 years ago

```							aSecx-ctanx=dSo, a=(d+ctanx) /secx____1bSecx+dtanx=cSo, b=(c-dtanx) /secx_____2Now, squaring eq. 1&eq.2So,a^2+b^2=(d^2+c^2tan^2x+2cdtanx+c^2+d^2tan^2x-2cdtanx)/sex^2xa^2+b^2=(d^2+c^2tan^2x+c^2+d^2tan^2x)/sec^2xa^2+b^2=[d^2(1+tan^2x)+c^2(1+tan^2x)]/sec^2xa^2+b^2=[(1+tan^2x)(c^2+d^2)]/sec^2xa^2+b^2=[sec^2x(c^2+d^2)]/sec^2xSo,a^2+b^2=c^2+d^2                     HENCE PROVEDThanks to give a chance for answering to me
```
2 years ago
Think You Can Provide A Better Answer ?

## Other Related Questions on Trigonometry

View all Questions »  ### Course Features

• 731 Video Lectures
• Revision Notes
• Previous Year Papers
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Test paper with Video Solution  ### Course Features

• 31 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions